Source: https://aidb.si/d/acid-dissociation-constants — Data from Wikidata (CC0); many pKa statements there cite the CRC Handbook of Chemistry and Physics, PubChem/HSDB or the primary literature as their reference.
| Wikidata | Compound | Formula | pKa | At temperature (°C) | pKa₂ | pKa₃ | Values | Lowest pKa | Highest pKa | PubChem CID | CAS number | Wikipedia languages |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Q304850 | triflic acid | CHF₃O₃S | -14.27 | 1 | -14.27 | -14.27 | 62406 | 1493-13-6 | 32 | |||
| Q2462 | hydrogen iodide | HI | -11 | 1 | -11 | -11 | 21844680 | 10034-85-2 | 46 | |||
| Q193956 | perchloric acid | HClO₄ | -10 | 1 | -10 | -10 | 24247 | 7601-90-3 | 57 | |||
| Q2409 | hydrochloric acid | HCl(aq) | -6.3 | 1 | -6.3 | -6.3 | 7647-01-0 | 94 | ||||
| Q242627 | pyrrole | C₄H₅N | -3.8 | 25 | 1 | -3.8 | -3.8 | 8027 | 109-97-7 | 49 | ||
| Q899683 | isoxazole | C₃H₃NO | -3.01 | 1 | -3.01 | -3.01 | 9254 | 288-14-2 | 33 | |||
| Q83320 | nitric acid | HNO₃ | -1.64 | 1 | -1.64 | -1.64 | 944 | 7697-37-2 | 96 | |||
| Q27119858 | 1-octanesulfonic acid | C₈H₁₈O₃S | -1.19 | 27 | 1 | -1.19 | -1.19 | 49939 | 3944-72-7 | 0 | ||
| Q66914279 | PFPA | C₃HF₅O₂ | -1.18 | 27 | 1 | -1.18 | -1.18 | 62356 | 422-64-0 | 6 | ||
| Q81977557 | Perfluoro-3,6-dioxaheptanoic acid | C₅HF₉O₄ | -0.32 | 27 | 1 | -0.32 | -0.32 | 2782393 | 151772-58-6 | 1 | ||
| Q418348 | perfluorooctanoic acid | C₈HF₁₅O₂ | -0.27 | 27 | 1 | -0.27 | -0.27 | 9554 | 335-67-1 | 35 | ||
| Q81977241 | Perfluoro-3-methoxypropanoic acid | C₄HF₇O₃ | -0.26 | 27 | 1 | -0.26 | -0.26 | 120228 | 377-73-1 | 1 | ||
| Q29387971 | 2,3,3,3-tetrafluoro-2-(heptafluoropropoxy)propanoic acid | C₆HF₁₁O₃ | -0.2 | 27 | 1 | -0.2 | -0.2 | 114481 | 13252-13-6 | 5 | ||
| Q849881 | hydronium | H₃O⁺ | 0 | 1 | 0 | 0 | 123332 | 13968-08-6 | 45 | |||
| Q107184 | cupric sulfate | CuSO₄ | 0.005 | 1 | 0.005 | 0.005 | 24462 | 7758-98-7 | 67 | |||
| Q48318 | urea | CH₄N₂O | 0.18 | 1 | 0.18 | 0.18 | 1176 | 57-13-6 | 85 | |||
| Q189298 | picric acid | C₆H₃N₃O₇ | 0.38 | 2 | 0.25 | 0.38 | 6954 | 88-89-1 | 59 | |||
| Q417571 | pyrazinamide | C₅H₅N₃O | 0.5 | 1 | 0.5 | 0.5 | 1046 | 98-96-4 | 35 | |||
| Q412033 | trifluoroacetic acid | C₂HF₃O₂ | 0.52 | 25 | 3 | 0.03 | 0.52 | 23138861 | 76-05-1 | 34 | ||
| Q410116 | trichloroacetic acid | C₂HCl₃O₂ | 0.64 | 1 | 0.64 | 0.64 | 23223116 | 76-03-9 | 33 | |||
| Q424284 | pyrazine | C₄H₄N₂ | 0.65 | 1 | 0.65 | 0.65 | 9261 | 290-37-9 | 37 | |||
| Q27261795 | benzylsulfonic acid | C₇H₈O₃S | 0.7 | 1 | 0.7 | 0.7 | 7532 | 100-87-8 | 0 | |||
| Q408822 | iodic acid | HIO₃ | 0.77 | 1 | 0.77 | 0.77 | 24345 | 7782-68-5 | 33 | |||
| Q413374 | calcium fluoride | CaF₂ | 1 | 1 | 1 | 1 | 24617 | 7789-75-5 | 42 | |||
| Q184832 | oxalic acid | C₂H₂O₄ | 1.19 | 1 | 1.19 | 1.19 | 18676629 | 144-62-7 | 70 | |||
| Q15126139 | difluoroacetic acid | C₂H₂F₂O₂ | 1.22 | 27 | 1 | 1.22 | 1.22 | 9788 | 381-73-7 | 12 | ||
| Q2823255 | dimethyl phosphoric acid | C₂H₇O₄P | 1.29 | 1 | 1.29 | 1.29 | 13134 | 813-78-5 | 1 | |||
| Q64703485 | phosphonic acid | H₃PO₃ | 1.3 | 20 | 6.7 | 2 | 1.3 | 1.3 | 407 | 13598-36-2 | 35 | |
| Q412845 | dichloroacetic acid | C₂H₂Cl₂O₂ | 1.3 | 1 | 1.3 | 1.3 | 6597 | 79-43-6 | 30 | |||
| Q191381 | saccharin | C₇H₅NO₃S | 1.31 | 25 | 1 | 1.31 | 1.31 | 5143 | 81-07-2 | 56 | ||
| Q26841026 | diethyl hydrogen phosphate | C₄H₁₁O₄P | 1.39 | 1 | 1.39 | 1.39 | 654 | 598-02-7 | 0 | |||
| Q23637400 | timonacic | C₄H₇NO₂S | 1.51 | 1 | 1.51 | 1.51 | 5081328 | 444-27-9 | 6 | |||
| Q23993898 | methyl dihydrogen phosphate | CH₅O₄P | 1.54 | 1 | 1.54 | 1.54 | 13130 | 812-00-0 | 0 | |||
| Q23978208 | dipropyl phosphate | C₆H₁₅O₄P | 1.59 | 1 | 1.59 | 1.59 | 74544 | 1804-93-9 | 0 | |||
| Q23994379 | monoethyl phosphate | C₂H₇O₄P | 1.6 | 1 | 1.6 | 1.6 | 74190 | 1623-14-9 | 0 | |||
| Q20963648 | dibutyl phosphate | C₈H₁₉O₄P | 1.72 | 1 | 1.72 | 1.72 | 7881 | 107-66-4 | 0 | |||
| Q23994814 | mono-n-propyl phosphoric acid | C₃H₉O₄P | 1.88 | 1 | 1.88 | 1.88 | 74188 | 1623-06-9 | 0 | |||
| Q23994813 | butyl dihydrogen phosphate | C₄H₁₁O₄P | 1.89 | 1 | 1.89 | 1.89 | 15389 | 1623-15-0 | 0 | |||
| Q4118 | sulfuric acid | H₂SO₄ | 1.92 | 25 | 2 | -3 | 1.92 | 1118 | 7664-93-9 | 103 | ||
| Q3143743 | hydrogen sulfate ion | HO₄S⁻ | 1.92 | 1 | 1.92 | 1.92 | 21529193 | 14996-02-2 | 4 | |||
| Q186474 | L-Cysteine | C₃H₇NO₂S | 1.96 | 1 | 1.96 | 1.96 | 5862 | 52-90-4 | 61 | |||
| Q184782 | phosphoric acid | H₃PO₄ | 1.97 | 2 | 1.97 | 2.12 | 1004 | 7664-38-2 | 74 | |||
| Q484583 | DL-proline | C₅H₉NO₂ | 1.99 | 1 | 1.99 | 1.99 | 25246272 | 609-36-9 | 64 | |||
| Q23779747 | S-ethylcysteine | C₅H₁₁NO₂S | 2.03 | 1 | 2.03 | 2.03 | 25203803 | 22196-52-7 | 0 | |||
| Q57748943 | Purpurogenic acid | C₁₃H₁₆O₇ | 2.18 | 1 | 2.18 | 2.18 | 139033625 | 2222796-22-5 | 0 | |||
| Q413334 | arsenic acid | AsH₃O₄ | 2.26 | 25 | 6.76 | 11.29 | 3 | 2.26 | 2.26 | 234 | 7778-39-4 | 39 |
| Q180341 | DL-methionine | C₅H₁₁NO₂S | 2.29 | 1 | 2.29 | 2.29 | 135373086 | 59-51-8 | 63 | |||
| Q127060 | folic acid | C₁₉H₁₉N₇O₆ | 2.35 | 1 | 2.35 | 2.35 | 135398658 | 59-30-3 | 3 | |||
| Q620730 | glycine | C₂H₅NO₂ | 2.35 | 1 | 2.35 | 2.35 | 750 | 56-40-6 | 77 | |||
| Q5122804 | citraconic acid | C₅H₆O₄ | 2.42 | 1 | 2.42 | 2.42 | 643798 | 498-23-7 | 15 | |||
| Q213580 | pyruvic acid | C₃H₄O₃ | 2.5 | 1 | 2.5 | 2.5 | 1060 | 127-17-3 | 57 | |||
| Q413822 | carnosine | C₉H₁₄N₄O₃ | 2.51 | 25 | 6.76 | 9.35 | 6 | 2.51 | 2.73 | 439224 | 305-84-0 | 28 |
| Q27156876 | 6:2 fluorotelomer unsaturated carboxylic acid | C₈H₂F₁₂O₂ | 2.58 | 27 | 1 | 2.58 | 2.58 | 85976247 | 70887-88-6 | 0 | ||
| Q15633283 | methyl fluoroacetate | C₃H₅FO₂ | 2.58 | 27 | 1 | 2.58 | 2.58 | 9959 | 453-18-9 | 7 | ||
| Q218642 | L-alanine | C₃H₇NO₂ | 2.61 | 1 | 2.61 | 2.61 | 5950 | 56-41-7 | 74 | |||
| Q209222 | 2,4-dichlorophenoxyacetic acid | C₈H₆Cl₂O₃ | 2.81 | 1 | 2.81 | 2.81 | 1486 | 94-75-7 | 33 | |||
| Q223027 | 3,5-dinitrobenzoic acid | C₇H₄N₂O₆ | 2.82 | 1 | 2.82 | 2.82 | 7433 | 99-34-3 | 10 | |||
| Q409013 | chloroacetic acid | C₂H₃ClO₂ | 2.9 | 25 | 2 | 2.85 | 2.9 | 300 | 79-11-8 | 37 | ||
| Q15425773 | 4-nitrophenyl arsonic acid | C₆H₆AsNO₅ | 2.9 | 1 | 2.9 | 2.9 | 66826 | 98-72-6 | 8 | |||
| Q23636743 | acetylthiazolidine-4-carboxylic acid | C₆H₉NO₃S | 2.96 | 1 | 2.96 | 2.96 | 20614631 | 0 | ||||
| Q159683 | citric acid | C₆H₈O₇ | 3.14 | 1 | 3.14 | 3.14 | 311 | 77-92-9 | 80 | |||
| Q209569 | hydrofluoric acid | HF | 3.17 | 1 | 3.17 | 3.17 | 69 | |||||
| Q2468 | hydrogen fluoride | FH | 3.17 | 2 | 3.14 | 3.17 | 14917 | 7664-39-3 | 50 | |||
| Q211891 | nitrous acid | HNO₂ | 3.2 | 25 | 1 | 3.2 | 3.2 | 24529 | 7782-77-6 | 53 | ||
| Q82011215 | 4-bromophenyl arsonic acid | C₆H₆AsBrO₃ | 3.25 | 1 | 3.25 | 3.25 | 223334 | 55048-80-1 | 0 | |||
| Q27216284 | procysteine | C₄H₅NO₃S | 3.32 | 22 | 1 | 3.32 | 3.32 | 72390 | 19771-63-2 | 3 | ||
| Q27259208 | 4-chlorophenyl arsonic acid | C₆H₆AsClO₃ | 3.33 | 1 | 3.33 | 3.33 | 79502 | 5440-04-0 | 0 | |||
| Q27280018 | 2-nitrophenyl arsonic acid | C₆H₆AsNO₅ | 3.37 | 1 | 3.37 | 3.37 | 79424 | 5410-29-7 | 0 | |||
| Q27256949 | 3-nitrophenyl arsonic acid | C₆H₆AsNO₅ | 3.41 | 1 | 3.41 | 3.41 | 72905 | 618-07-5 | 0 | |||
| Q1976186 | methyl arsonic acid | CH₅AsO₃ | 3.41 | 1 | 3.41 | 3.41 | 8948 | 124-58-3 | 12 | |||
| Q3049725 | 4-hydroxy-3-nitrophenyl arsonic acid | C₆H₆AsNO₆ | 3.46 | 1 | 3.46 | 3.46 | 5104 | 121-19-7 | 14 | |||
| Q418592 | phenyl arsonic acid | C₆H₇AsO₃ | 3.47 | 1 | 3.47 | 3.47 | 7365 | 98-05-5 | 15 | |||
| Q4634183 | 3-nitrobenzoic acid | C₇H₅NO₄ | 3.47 | 1 | 3.47 | 3.47 | 8497 | 121-92-6 | 15 | |||
| Q18216 | aspirin | C₉H₈O₄ | 3.49 | 25 | 1 | 3.49 | 3.49 | 2244 | 50-78-2 | 113 | ||
| Q135530755 | 3-chlorohexyl arsonic acid | C₆H₁₄AsClO₃ | 3.51 | 1 | 3.51 | 3.51 | 23423311 | 0 | ||||
| Q409692 | 3-oxobutanoic acid | C₄H₆O₃ | 3.58 | 18 | 1 | 3.58 | 3.58 | 96 | 541-50-4 | 36 | ||
| Q190012 | adenosine | C₁₀H₁₃N₅O₄ | 3.6 | 25 | 12.4 | 2 | 3.6 | 3.6 | 60961 | 58-61-7 | 60 | |
| Q135530757 | 3-chloropropyl arsonic acid | C₃H₈AsClO₃ | 3.63 | 1 | 3.63 | 3.63 | 23423306 | 0 | ||||
| Q24014027 | N,N-dimethylmethoxyamine | C₃H₉NO | 3.65 | 1 | 3.65 | 3.65 | 138559 | 5669-39-6 | 0 | |||
| Q83075709 | 1-naphthyl arsonic acid | C₁₀H₉AsO₃ | 3.66 | 1 | 3.66 | 3.66 | 21511 | 5410-54-8 | 0 | |||
| Q135530751 | 2-chloroethyl arsonic acid | C₂H₆AsClO₃ | 3.68 | 1 | 3.68 | 3.68 | 23423305 | 0 | ||||
| Q83065438 | 4-methylphenyl arsonic acid | C₇H₉AsO₃ | 3.7 | 1 | 3.7 | 3.7 | 77588 | 3969-54-8 | 0 | |||
| Q135530756 | 3-chloropentyl arsonic acid | C₅H₁₂AsClO₃ | 3.71 | 1 | 3.71 | 3.71 | 23423310 | 0 | ||||
| Q161233 | formic acid | CH₂O₂ | 3.75 | 25 | 2 | 3.75 | 3.81 | 284 | 64-18-6 | 77 | ||
| Q135530752 | 2-chloropropyl arsonic acid | C₃H₈AsClO₃ | 3.76 | 1 | 3.76 | 3.76 | 0 | |||||
| Q584079 | 3-acetylamino-4-hydroxyphenyl arsonic acid | C₈H₁₀AsNO₅ | 3.78 | 1 | 3.78 | 3.78 | 1985 | 97-44-9 | 19 | |||
| Q27260326 | 2-aminophenyl arsonic acid | C₆H₈AsNO₃ | 3.79 | 1 | 3.79 | 3.79 | 73161 | 2045-00-3 | 0 | |||
| Q83087516 | 4-methoxyphenyl arsonic acid | C₇H₉AsO₄ | 3.79 | 1 | 3.79 | 3.79 | 80568 | 6307-51-3 | 0 | |||
| Q318369 | adenosine monophosphate | C₁₀H₁₄N₅O₇P | 3.8 | 25 | 6.2 | 2 | 3.8 | 3.8 | 6083 | 61-19-8 | 43 | |
| Q83085889 | benzyl arsonic acid | C₇H₉AsO₃ | 3.81 | 1 | 3.81 | 3.81 | 94911 | 620-27-9 | 0 | |||
| Q27285974 | 2-methylphenyl arsonic acid | C₇H₉AsO₃ | 3.82 | 1 | 3.82 | 3.82 | 77589 | 3969-57-1 | 0 | |||
| Q27266356 | 3-methylphenyl arsonic acid | C₇H₉AsO₃ | 3.82 | 1 | 3.82 | 3.82 | 79425 | 5410-37-7 | 0 | |||
| Q903311 | itaconic acid | C₅H₆O₄ | 3.85 | 25 | 5.45 | 2 | 3.85 | 3.85 | 118343040 | 97-65-4 | 20 | |
| Q178450 | L-aspartic acid | C₄H₇NO₄ | 3.86 | 1 | 3.86 | 3.86 | 139060126 | 56-84-8 | 66 | |||
| Q27282689 | 4-hydroxyphenyl arsonic acid | C₆H₇AsO₄ | 3.89 | 1 | 3.89 | 3.89 | 7373 | 98-14-6 | 0 | |||
| Q27268970 | ethyl arsonic acid | C₂H₇AsO₃ | 3.89 | 1 | 3.89 | 3.89 | 220807 | 507-32-4 | 0 | |||
| Q135530754 | 3-chlorobutyl arsonic acid | C₄H₁₀AsClO₃ | 3.95 | 1 | 3.95 | 3.95 | 0 | |||||
| Q229935 | 4-bromopyridine | C₅H₄BrN | 3.96 | 1 | 3.96 | 3.96 | 14268 | 1120-87-2 | 3 | |||
| Q2235989 | 4-chlorobenzoic acid | C₇H₅ClO₂ | 3.98 | 25 | 1 | 3.98 | 3.98 | 6318 | 74-11-3 | 11 | ||
| Q82021041 | 2-hydroxyphenyl arsonic acid | C₆H₇AsO₄ | 4 | 1 | 4 | 4 | 238189 | 6299-08-7 | 0 | |||
| Q63391565 | 5:3 FTCA | C₈H₅F₁₁O₂ | 4.05 | 27 | 1 | 4.05 | 4.05 | 14632790 | 914637-49-3 | 0 | ||
| Q210021 | γ-aminobutyric acid | C₄H₉NO₂ | 4.05 | 1 | 4.05 | 4.05 | 119 | 56-12-2 | 54 | |||
| Q82023238 | 2-methoxyphenyl arsonic acid | C₇H₉AsO₄ | 4.08 | 1 | 4.08 | 4.08 | 241958 | 49784-54-5 | 0 | |||
| Q223069 | 3-chloropyridine | C₅H₄ClN | 4.09 | 1 | 4.09 | 4.09 | 12287 | 626-60-8 | 8 | |||
| Q704203 | 4-aminophenyl arsonic acid | C₆H₈AsNO₃ | 4.13 | 1 | 4.13 | 4.13 | 6432805 | 98-50-0 | 18 | |||
| Q82036113 | pentyl arsonic acid | C₅H₁₃AsO₃ | 4.14 | 1 | 4.14 | 4.14 | 267080 | 36333-42-3 | 0 | |||
| Q82036114 | hexyl arsonic acid | C₆H₁₅AsO₃ | 4.16 | 1 | 4.16 | 4.16 | 267081 | 35328-94-0 | 0 | |||
| Q135530749 | 2-naphthyl arsonic acid | C₁₀H₉AsO₃ | 4.2 | 1 | 4.2 | 4.2 | 101127381 | 0 | ||||
| Q135270 | harmaline | C₁₃H₁₄N₂O | 4.2 | 1 | 4.2 | 4.2 | 3564 | 304-21-2 | 17 | |||
| Q191700 | benzoic acid | C₇H₆O₂ | 4.204 | 25 | 2 | 4.2 | 4.204 | 20144841 | 65-85-0 | 61 | ||
| Q27289263 | propyl arsonic acid | C₃H₉AsO₃ | 4.21 | 1 | 4.21 | 4.21 | 66944 | 107-34-6 | 0 | |||
| Q82962542 | 4-arsonobenzoic acid | C₇H₇AsO₅ | 4.22 | 1 | 4.22 | 4.22 | 224897 | 618-20-2 | 1 | |||
| Q82036111 | butyl arsonic acid | C₄H₁₁AsO₃ | 4.23 | 1 | 4.23 | 4.23 | 267079 | 590-72-7 | 0 | |||
| Q324628 | acrylic acid | C₃H₄O₂ | 4.25 | 1 | 4.25 | 4.25 | 6581 | 79-10-7 | 55 | |||
| Q135530750 | 2,4-dimethoxyphenyl arsonic acid | C₈H₁₁AsO₅ | 4.35 | 1 | 4.35 | 4.35 | 23422971 | 0 | ||||
| Q415111 | dinoseb | C₁₀H₁₂N₂O₅ | 4.4 | 1 | 4.4 | 4.4 | 6950 | 88-85-7 | 17 | |||
| Q164785 | (E)-cinnamic acid | C₉H₈O₂ | 4.44 | 1 | 4.44 | 4.44 | 444539 | 140-10-3 | 45 | |||
| Q4566032 | p-anisic acid | C₈H₈O₃ | 4.49 | 1 | 4.49 | 4.49 | 7478 | 100-09-4 | 20 | |||
| Q18344129 | methoxyamine | CH₅NO | 4.6 | 1 | 4.6 | 4.6 | 4113 | 67-62-9 | 8 | |||
| Q410465 | isonicotinic acid | C₆H₅NO₂ | 4.6 | 1 | 4.6 | 4.6 | 5922 | 55-22-1 | 20 | |||
| Q23637022 | adipamic acid | C₆H₁₁NO₃ | 4.63 | 25 | 1 | 4.63 | 4.63 | 567659 | 334-25-8 | 0 | ||
| Q408925 | hydrogen azide | HN₃ | 4.64 | 1 | 4.64 | 4.64 | 24530 | 7782-79-8 | 43 | |||
| Q414207 | crotonic acid | C₄H₆O₂ | 4.69 | 1 | 4.69 | 4.69 | 637090 | 107-93-7 | 28 | |||
| Q207920 | 4-hydroxybutyric acid | C₄H₈O₃ | 4.71 | 1 | 4.71 | 4.71 | 10413 | 591-81-1 | 47 | |||
| Q23636732 | 4-pyridinecarboxaldehyde | C₆H₅NO | 4.72 | 1 | 4.72 | 4.72 | 13389 | 872-85-5 | 7 | |||
| Q6477050 | N-methoxymethylamine | C₂H₇NO | 4.75 | 1 | 4.75 | 4.75 | 14232 | 1117-97-1 | 11 | |||
| Q407699 | arachidonic acid | C₂₀H₃₂O₂ | 4.752 | 1 | 4.752 | 4.752 | 444899 | 506-32-1 | 48 | |||
| Q47512 | acetic acid | C₂H₄O₂ | 4.756 | 25 | 2 | 4.74 | 4.756 | 176 | 64-19-7 | 95 | ||
| Q130601234 | Punicic acid | C₁₈H₃₀O₂ | 4.76 | 1 | 4.76 | 4.76 | 0 | |||||
| Q407796 | valeric acid | C₅H₁₀O₂ | 4.82 | 1 | 4.82 | 4.82 | 7991 | 109-52-4 | 42 | |||
| Q16934561 | favipiravir | C₅H₄FN₃O₂ | 5.1 | 1 | 5.1 | 5.1 | 492405 | 259793-96-9 | 37 | |||
| Q19903909 | cyanoform | C₄HN₃ | 5.1 | 1 | 5.1 | 5.1 | 5232958 | 454-50-2 | 7 | |||
| Q23012061 | sulfometuron methyl | C₁₅H₁₆N₄O₅S | 5.2 | 1 | 5.2 | 5.2 | 52997 | 74222-97-2 | 7 | |||
| Q24004551 | N,N-Dimethylhydroxylamine | C₂H₇NO | 5.2 | 1 | 5.2 | 5.2 | 27970 | 5725-96-2 | 1 | |||
| Q412316 | isoquinoline | C₉H₇N | 5.4 | 1 | 5.4 | 5.4 | 8405 | 119-65-3 | 34 | |||
| Q23636070 | 3,5-dimethylpyridine | C₇H₉N | 5.85 | 1 | 5.85 | 5.85 | 11565 | 591-22-0 | 7 | |||
| Q18378717 | N-methylhydroxylamine | CH₅NO | 5.96 | 1 | 5.96 | 5.96 | 11647 | 593-77-1 | 7 | |||
| Q259997 | hydroxylamine | NH₂OH | 5.97 | 1 | 5.97 | 5.97 | 787 | 7803-49-8 | 40 | |||
| Q427956 | tannic acid | C₇₆H₅₂O₄₆ | 6 | 1 | 6 | 6 | 16129778 | 1401-55-4 | 32 | |||
| Q23636061 | 2,5-lutidine | C₇H₉N | 6.18 | 1 | 6.18 | 6.18 | 11526 | 589-93-5 | 2 | |||
| Q23636064 | 3,4-lutidine | C₇H₉N | 6.28 | 1 | 6.28 | 6.28 | 11417 | 583-58-4 | 3 | |||
| Q104334 | carbonic acid | H₂CO₃ | 6.37 | 1 | 6.37 | 6.37 | 767 | 463-79-6 | 76 | |||
| Q108314971 | DLin-MC3-DMA | C₄₃H₇₉NO₂ | 6.44 | 1 | 6.44 | 6.44 | 49785164 | 0 | ||||
| Q22266828 | 2,4-lutidine | C₇H₉N | 6.46 | 1 | 6.46 | 6.46 | 7936 | 108-47-4 | 8 | |||
| Q410521 | diiodo-L-tyrosine | C₉H₉I₂NO₃ | 6.48 | 1 | 6.48 | 6.48 | 7058163 | 300-39-0 | 16 | |||
| Q425680 | deoxycholic acid | C₂₄H₄₀O₄ | 6.58 | 1 | 6.58 | 6.58 | 222528 | 83-44-3 | 20 | |||
| Q209284 | 2,6-lutidine | C₇H₉N | 6.67 | 1 | 6.67 | 6.67 | 7937 | 108-48-5 | 20 | |||
| Q209180 | 2,4,6-tribromophenol | C₆H₃Br₃O | 6.8 | 1 | 6.8 | 6.8 | 1483 | 118-79-6 | 14 | |||
| Q170591 | hydrogen sulfide | H₂S | 7.04 | 1 | 7.04 | 7.04 | 18779926 | 7783-06-4 | 76 | |||
| Q23775141 | N-Allylmorpholine | C₇H₁₃NO | 7.05 | 1 | 7.05 | 7.05 | 136522 | 696-57-1 | 0 | |||
| Q3269240 | Performic acid | CH₂O₃ | 7.1 | 1 | 7.1 | 7.1 | 66051 | 107-32-4 | 18 | |||
| Q4030654 | 3-(N-morpholino)propanesulfonic acid | C₇H₁₅NO₄S | 7.2 | 1 | 7.2 | 7.2 | 2723950 | 1132-61-2 | 14 | |||
| Q5276432 | 2,3-dihydrogossypetin | C₁₅H₁₂O₈ | 7.24 | 25 | 1 | 7.24 | 7.24 | 5460097 | 40525-53-9 | 10 | ||
| Q2542075 | N-methylmorpholine | C₅H₁₁NO | 7.41 | 1 | 7.41 | 7.41 | 7972 | 109-02-4 | 12 | |||
| Q128381 | harmine | C₁₃H₁₂N₂O | 7.7 | 1 | 7.7 | 7.7 | 5280953 | 442-51-3 | 18 | |||
| Q2676918 | N-ethylmorpholine | C₆H₁₃NO | 7.7 | 1 | 7.7 | 7.7 | 7525 | 100-74-3 | 3 | |||
| Q424314 | trolamine | C₆H₁₅NO₃ | 7.77 | 1 | 7.77 | 7.77 | 7618 | 102-71-6 | 23 | |||
| Q24007763 | N-benzoylpiperazine | C₁₁H₁₄N₂O | 7.78 | 1 | 7.78 | 7.78 | 762654 | 13754-38-6 | 0 | |||
| Q409141 | aziridine | C₂H₅N | 8.01 | 1 | 8.01 | 8.01 | 9033 | 151-56-4 | 34 | |||
| Q58447 | hydrazine | N₂H₄ | 8.1 | 1 | 8.1 | 8.1 | 9321 | 302-01-2 | 65 | |||
| Q375140 | peracetic acid | C₂H₄O₃ | 8.2 | 1 | 8.2 | 8.2 | 6585 | 79-21-0 | 32 | |||
| Q194406 | strychnine | C₂₁H₂₂N₂O₂ | 8.26 | 1 | 8.26 | 8.26 | 441071 | 57-24-9 | 55 | |||
| Q24008333 | N-carbethoxypiperazine | C₇H₁₄N₂O₂ | 8.28 | 1 | 8.28 | 8.28 | 8431 | 120-43-4 | 0 | |||
| Q23779745 | triallylamine | C₉H₁₅N | 8.31 | 1 | 8.31 | 8.31 | 7617 | 102-70-5 | 9 | |||
| Q414492 | salicylaldehyde | C₇H₆O₂ | 8.37 | 25 | 1 | 8.37 | 8.37 | 6998 | 90-02-8 | 29 | ||
| Q41576 | cocaine | C₁₇H₂₁NO₄ | 8.41 | 1 | 8.41 | 8.41 | 446220 | 50-36-2 | 115 | |||
| Q410243 | morpholine | C₄H₉NO | 8.5 | 25 | 2 | 8.36 | 8.5 | 8083 | 110-91-8 | 30 | ||
| Q44288044 | chlorotonil A | C₂₆H₃₂Cl₂O₄ | 8.54 | 25 | 1 | 8.54 | 8.54 | 24742044 | 1009813-26-6 | 2 | ||
| Q407217 | dimethyltryptamine | C₁₂H₁₆N₂ | 8.68 | 1 | 8.68 | 8.68 | 6089 | 61-50-7 | 42 | |||
| Q23638211 | allyldimethyl amine | C₅H₁₁N | 8.72 | 1 | 8.72 | 8.72 | 75082 | 2155-94-4 | 0 | |||
| Q23978293 | diallylmethylamine | C₇H₁₃N | 8.79 | 1 | 8.79 | 8.79 | 75501 | 2424-01-3 | 0 | |||
| Q9552900 | 4-hydroxyazobenzene | C₁₂H₁₀N₂O | 8.93 | 1 | 8.93 | 8.93 | 15529 | 1689-82-3 | 8 | |||
| Q424966 | N,N-dimethylbenzylamine | C₉H₁₃N | 8.93 | 1 | 8.93 | 8.93 | 7681 | 103-83-3 | 14 | |||
| Q23767 | calcium carbonate | CaCO₃ | 9 | 1 | 9 | 9 | 10112 | 471-34-1 | 82 | |||
| Q188017 | L-tyrosine | C₉H₁₁NO₃ | 9.11 | 1 | 9.11 | 9.11 | 6057 | 60-18-4 | 64 | |||
| Q26997410 | DL-serine | C₃H₇NO₃ | 9.15 | 1 | 9.15 | 9.15 | 617 | 302-84-1 | 0 | |||
| Q485277 | L-histidine | C₆H₉N₃O₂ | 9.18 | 1 | 9.18 | 9.18 | 6274 | 71-00-1 | 64 | |||
| Q187045 | orthoboric acid | BH₃O₃ | 9.2 | 25 | 2 | 9.14 | 9.2 | 7628 | 10043-35-3 | 70 | ||
| Q22124685 | L-methionine | C₅H₁₁NO₂S | 9.21 | 1 | 9.21 | 9.21 | 6137 | 63-68-3 | 1 | |||
| Q26075 | hydrogen cyanide | CHN | 9.21 | 1 | 9.21 | 9.21 | 768 | 74-90-8 | 73 | |||
| Q4087 | ammonia | NH₃ | 9.21 | 1 | 9.21 | 9.21 | 222 | 7664-41-7 | 118 | |||
| Q170545 | phenylalanine | C₉H₁₁NO₂ | 9.24 | 1 | 9.24 | 9.24 | 6140 | 63-91-2 | 64 | |||
| Q1208441 | diallylamine | C₆H₁₁N | 9.29 | 1 | 9.29 | 9.29 | 31279 | 124-02-7 | 10 | |||
| Q424000 | benzylamine | C₇H₉N | 9.34 | 1 | 9.34 | 9.34 | 7504 | 100-46-9 | 32 | |||
| Q181003 | tryptophan | C₁₁H₁₂N₂O₂ | 9.39 | 1 | 9.39 | 9.39 | 6305 | 73-22-3 | 66 | |||
| Q182990 | uracil | C₄H₄N₂O₂ | 9.45 | 25 | 1 | 9.45 | 9.45 | 1174 | 66-22-8 | 65 | ||
| Q23698430 | Benzyldiethyl amine | C₁₁H₁₇N | 9.48 | 1 | 9.48 | 9.48 | 61211 | 772-54-3 | 0 | |||
| Q417414 | allylamine | C₃H₇N | 9.49 | 25 | 1 | 9.49 | 9.49 | 7853 | 107-11-9 | 28 | ||
| Q410387 | monoethanolamine | C₂H₇NO | 9.5 | 1 | 9.5 | 9.5 | 700 | 141-43-5 | 36 | |||
| Q23978278 | benzylmethyl amine | C₈H₁₁N | 9.58 | 1 | 9.58 | 9.58 | 7669 | 103-67-3 | 0 | |||
| Q23978270 | N-ethylbenzylamine | C₉H₁₃N | 9.68 | 1 | 9.68 | 9.68 | 84352 | 14321-27-8 | 0 | |||
| Q24007261 | N-allylpiperidine | C₈H₁₅N | 9.68 | 1 | 9.68 | 9.68 | 139756 | 14446-67-4 | 0 | |||
| Q483752 | L-valine | C₅H₁₁NO₂ | 9.719 | 1 | 9.719 | 9.719 | 6287 | 72-18-4 | 66 | |||
| Q484940 | L-isoleucine | C₆H₁₃NO₂ | 9.758 | 1 | 9.758 | 9.758 | 6306 | 73-32-5 | 64 | |||
| Q423953 | trimethylamine | C₃H₉N | 9.76 | 1 | 9.76 | 9.76 | 1146 | 75-50-3 | 34 | |||
| Q407411 | 2-phenethylamine | C₈H₁₁N | 9.83 | 25 | 1 | 9.83 | 9.83 | 1001 | 64-04-0 | 41 | ||
| Q27076975 | D-Alanine | C₃H₇NO₂ | 9.866 | 1 | 9.866 | 9.866 | 71080 | 338-69-2 | 0 | |||
| Q130336 | phenol | C₆H₆O | 9.89 | 1 | 9.89 | 9.89 | 20488062 | 108-95-2 | 87 | |||
| Q23978434 | dimethyl-isobutyl amine | C₆H₁₅N | 9.91 | 1 | 9.91 | 9.91 | 81653 | 7239-24-9 | 0 | |||
| Q169313 | guanine | C₅H₅N₅O | 9.92 | 40 | 1 | 9.92 | 9.92 | 135398634 | 73-40-5 | 72 | ||
| Q411362 | ethylenediamine | C₂H₈N₂ | 9.98 | 1 | 9.98 | 9.98 | 3301 | 107-15-3 | 32 | |||
| Q16954761 | N,N-dimethylethylamine | C₄H₁₁N | 9.99 | 1 | 9.99 | 9.99 | 11723 | 598-56-1 | 5 | |||
| Q23993346 | dimethyl-n-propyl amine | C₅H₁₃N | 9.99 | 1 | 9.99 | 9.99 | 61236 | 926-63-6 | 0 | |||
| Q23993507 | N,N-dimethylbutylamine | C₆H₁₅N | 10.02 | 1 | 10.02 | 10.02 | 13563 | 927-62-8 | 0 | |||
| Q24004759 | N-methylpiperidine | C₆H₁₃N | 10.08 | 1 | 10.08 | 10.08 | 12291 | 626-67-5 | 7 | |||
| Q23698414 | Allylmethyl amine | C₄H₉N | 10.11 | 1 | 10.11 | 10.11 | 69391 | 627-37-2 | 0 | |||
| Q422438 | chloroquine | C₁₈H₂₆ClN₃ | 10.18 | 2 | 10.18 | 10.2 | 2719 | 54-05-7 | 54 | |||
| Q407733 | nitromethane | CH₃NO₂ | 10.21 | 25 | 1 | 10.21 | 10.21 | 6375 | 75-52-5 | 43 | ||
| Q24004560 | Neopentylamine | C₅H₁₃N | 10.21 | 1 | 10.21 | 10.21 | 79882 | 5813-64-9 | 7 | |||
| Q23993534 | methyldiethyl amine | C₅H₁₃N | 10.29 | 1 | 10.29 | 10.29 | 12022 | 616-39-7 | 3 | |||
| Q23993292 | N,N-dimethylisopropylamine | C₅H₁₃N | 10.3 | 1 | 10.3 | 10.3 | 70452 | 996-35-0 | 2 | |||
| Q414555 | cyanamide | CH₂N₂ | 10.3 | 1 | 10.3 | 10.3 | 9864 | 420-04-2 | 36 | |||
| Q190227 | sodium carbonate | CNa₂O₃ | 10.33 | 1 | 10.33 | 10.33 | 10340 | 497-19-8 | 77 | |||
| Q60235 | caffeine | C₈H₁₀N₄O₂ | 10.4 | 40 | 2 | 10.4 | 14 | 2519 | 58-08-2 | 98 | ||
| Q167934 | serotonin | C₁₀H₁₂N₂O | 10.4 | 1 | 10.4 | 10.4 | 5202 | 50-67-9 | 74 | |||
| Q22829159 | N-ethylpiperidine | C₇H₁₅N | 10.4 | 1 | 10.4 | 10.4 | 13007 | 766-09-6 | 3 | |||
| Q24004478 | dimethyl-sec-butyl amine | C₆H₁₅N | 10.4 | 1 | 10.4 | 10.4 | 70200 | 921-04-0 | 0 | |||
| Q288188 | tert-butylamine | C₄H₁₁N | 10.45 | 1 | 10.45 | 10.45 | 6385 | 75-64-9 | 16 | |||
| Q24574865 | 1-methylpyrrolidine | C₅H₁₁N | 10.46 | 1 | 10.46 | 10.46 | 8454 | 120-94-5 | 3 | |||
| Q422416 | 17β-estradiol | C₁₈H₂₄O₂ | 10.46 | 1 | 10.46 | 10.46 | 5757 | 50-28-2 | 53 | |||
| Q23775590 | N-methylcyclohexylamine | C₇H₁₅N | 10.49 | 1 | 10.49 | 10.49 | 7514 | 100-60-7 | 4 | |||
| Q23978431 | diisobutylamine | C₈H₁₉N | 10.5 | 1 | 10.5 | 10.5 | 8085 | 110-96-3 | 6 | |||
| Q23995131 | dimethyl-t-butyl amine | C₆H₁₅N | 10.52 | 1 | 10.52 | 10.52 | 70190 | 918-02-5 | 0 | |||
| Q417852 | propylamine | C₃H₉N | 10.53 | 1 | 10.53 | 10.53 | 7852 | 107-10-8 | 23 | |||
| Q288208 | sec-butylamine | C₄H₁₁N | 10.56 | 1 | 10.56 | 10.56 | 24874 | 13952-84-6 | 17 | |||
| Q421035 | n-butylamine | C₄H₁₁N | 10.59 | 1 | 10.59 | 10.59 | 8007 | 109-73-9 | 23 | |||
| Q20035886 | L-proline | C₅H₉NO₂ | 10.6 | 1 | 10.6 | 10.6 | 145742 | 147-85-3 | 1 | |||
| Q409304 | methylamine | CH₅N | 10.62 | 1 | 10.62 | 10.62 | 6329 | 74-89-5 | 45 | |||
| Q420554 | isopropylamine | C₃H₉N | 10.63 | 1 | 10.63 | 10.63 | 6363 | 75-31-0 | 25 | |||
| Q1147539 | cyclohexylamine | C₆H₁₃N | 10.64 | 1 | 10.64 | 10.64 | 7965 | 108-91-8 | 21 | |||
| Q408022 | dimethylamine | C₂H₇N | 10.64 | 1 | 10.64 | 10.64 | 674 | 124-40-3 | 37 | |||
| Q411119 | ethylamine | C₂H₇N | 10.65 | 25 | 3 | 10.63 | 10.807 | 6341 | 75-04-7 | 35 | ||
| Q139199 | triethylamine | C₆H₁₅N | 10.65 | 1 | 10.65 | 10.65 | 8471 | 121-44-8 | 30 | |||
| Q1637944 | tri-n-propylamine | C₉H₂₁N | 10.65 | 1 | 10.65 | 10.65 | 7616 | 102-69-2 | 8 | |||
| Q905558 | tributylamine | C₁₂H₂₇N | 10.89 | 1 | 10.89 | 10.89 | 7622 | 102-82-9 | 13 | |||
| Q23978286 | trimethylsilylmethyl amine | C₄H₁₃NSi | 10.96 | 1 | 10.96 | 10.96 | 12529695 | 16513-17-0 | 0 | |||
| Q414196 | diethylamine | C₄H₁₁N | 10.98 | 1 | 10.98 | 10.98 | 8021 | 109-89-7 | 32 | |||
| Q410621 | N-dipropylamine | C₆H₁₅N | 11 | 1 | 11 | 11 | 8902 | 142-84-7 | 13 | |||
| Q23978210 | di-sec-butyl amine | C₈H₁₉N | 11.01 | 1 | 11.01 | 11.01 | 12277 | 626-23-3 | 0 | |||
| Q420331 | diisopropylamine | C₆H₁₅N | 11.05 | 1 | 11.05 | 11.05 | 7912 | 108-18-9 | 18 | |||
| Q410234 | piperidine | C₅H₁₁N | 11.22 | 1 | 11.22 | 11.22 | 8082 | 110-89-4 | 42 | |||
| Q23889676 | t-butylcyclohexyl amine | C₁₀H₂₁N | 11.23 | 1 | 11.23 | 11.23 | 103920 | 51609-06-4 | 0 | |||
| Q1209336 | dibutylamine | C₈H₁₉N | 11.25 | 1 | 11.25 | 11.25 | 8148 | 111-92-2 | 13 | |||
| Q408898 | pyrrolidine | C₄H₉N | 11.27 | 1 | 11.27 | 11.27 | 31268 | 123-75-1 | 33 | |||
| Q171877 | hydrogen peroxide | H₂O₂ | 11.75 | 2 | 11.62 | 11.75 | 784 | 7722-84-1 | 75 | |||
| Q3771739 | hydrosulfide | HS⁻ | 11.96 | 1 | 11.96 | 11.96 | 5047209 | 15035-72-0 | 11 | |||
| Q4596742 | 2,2,2-trichloroethanol | C₂H₃Cl₃O | 12.24 | 1 | 12.24 | 12.24 | 8259 | 115-20-8 | 20 | |||
| Q326224 | (S)-(−)-colchicine | C₂₂H₂₅NO₆ | 12.36 | 20 | 1 | 12.36 | 12.36 | 6167 | 64-86-8 | 43 | ||
| Q2474643 | 2,2,2-trifluoroethanol | C₂H₃F₃O | 12.37 | 25 | 1 | 12.37 | 12.37 | 6409 | 75-89-8 | 22 | ||
| Q173670 | L-arginine | C₆H₁₄N₄O₂ | 12.48 | 2 | 12.48 | 12.488 | 28782 | 74-79-3 | 67 | |||
| Q23978438 | 2,2,3,3-tetrafluoro-1-propanol | C₃H₄F₄O | 12.74 | 1 | 12.74 | 12.74 | 6441 | 76-37-9 | 0 | |||
| Q57281678 | lycogalinoside A | C₃₈H₆₀O₁₁ | 12.88 | 25 | 1 | 12.88 | 12.88 | 10394912 | 612091-87-9 | 0 | ||
| Q23637413 | 2,2-dichloroethanol | C₂H₄Cl₂O | 12.89 | 1 | 12.89 | 12.89 | 11718 | 598-38-9 | 0 | |||
| Q4545643 | 1,1,3,3-tetramethylguanidine | C₅H₁₃N₃ | 13 | 1 | 13 | 13 | 66460 | 80-70-6 | 13 | |||
| Q421761 | acetanilide | C₈H₉NO | 13.39 | 1 | 13.39 | 13.39 | 904 | 103-84-4 | 40 | |||
| Q61457 | acetaldehyde | C₂H₄O | 13.57 | 25 | 1 | 13.57 | 13.57 | 177 | 75-07-0 | 64 | ||
| Q903345 | propargyl alcohol | C₃H₄O | 13.6 | 25 | 2 | 13.55 | 13.6 | 7859 | 107-19-7 | 24 | ||
| Q132501 | glycerol | C₃H₈O₃ | 14.15 | 25 | 1 | 14.15 | 14.15 | 753 | 56-81-5 | 77 | ||
| Q209354 | 2-chloroethan-1-ol | C₂H₅ClO | 14.31 | 1 | 14.31 | 14.31 | 34 | 107-07-3 | 26 | |||
| Q161521 | 1,4-butanediol | C₄H₁₀O₂ | 14.5 | 1 | 14.5 | 14.5 | 8064 | 110-63-4 | 30 | |||
| Q903362 | ethylene glycol monomethyl ether | C₃H₈O₂ | 14.8 | 1 | 14.8 | 14.8 | 8019 | 109-86-4 | 22 | |||
| Q161495 | (RS)-propylene glycol | C₃H₈O₂ | 14.8 | 25 | 1 | 14.8 | 14.8 | 1030 | 57-55-6 | 41 | ||
| Q421721 | acetamide | C₂H₅NO | 15.1 | 25 | 2 | 0.63 | 15.1 | 178 | 60-35-5 | 46 | ||
| Q194207 | ethylene glycol | C₂H₆O₂ | 15.1 | 25 | 1 | 15.1 | 15.1 | 174 | 107-21-1 | 58 | ||
| Q52353 | benzyl alcohol | C₇H₈O | 15.4 | 1 | 15.4 | 15.4 | 244 | 100-51-6 | 42 | |||
| Q414553 | allyl alcohol | C₃H₆O | 15.5 | 25 | 1 | 15.5 | 15.5 | 7858 | 107-18-6 | 33 | ||
| Q14982 | methanol | CH₄O | 15.5 | 1 | 15.5 | 15.5 | 887 | 67-56-1 | 83 | |||
| Q153 | ethanol | C₂H₆O | 16 | 1 | 16 | 16 | 702 | 64-17-5 | 132 | |||
| Q16391 | butan-1-ol | C₄H₁₀O | 16 | 1 | 16 | 16 | 263 | 71-36-3 | 40 | |||
| Q16392 | isopropyl alcohol | C₃H₈O | 16.5 | 1 | 16.5 | 16.5 | 3776 | 67-63-0 | 55 | |||
| Q285790 | tert-butyl alcohol | C₄H₁₀O | 17 | 1 | 17 | 17 | 6386 | 75-65-0 | 31 | |||
| Q4734923 | α-pyrrolidinopentiophenone | C₁₅H₂₁NO | 17.90664 | 1 | 17.90664 | 17.90664 | 11148955 | 14530-33-7 | 21 | |||
| Q49546 | acetone | C₃H₆O | 19.16 | 25 | 1 | 19.16 | 19.16 | 180 | 67-64-1 | 77 | ||
| Q133145 | acetylene | C₂H₂ | 25 | 1 | 25 | 25 | 6326 | 74-86-2 | 78 | |||
| Q417321 | phenylacetylene | C₈H₆ | 28.8 | 1 | 28.8 | 28.8 | 10821 | 536-74-3 | 25 | |||
| Q407927 | dimethyl sulfoxide | C₂H₆OS | 35.1 | 1 | 35.1 | 35.1 | 679 | 67-68-5 | 44 | |||
| Q407924 | sodium hydride | NaH | 36 | 1 | 36 | 36 | 24758 | 7646-69-7 | 38 |