pyridine
Heterocyclic aromatic organic compound
Also known as azabenzene · py · Tritisan · pyridin · piridina
- Formula
- C₅H₅N
1
- C₅H₅N
- Mass
- 79.042 Da
1
- 79.042 Da
- Melting point
- -44°F
- , -42°C
1
- , -41.66°C
- Boiling point
- 240°F
- , 115.23°C
- Density
- 0.98 g/cm³
Overview
Chemistry
All data
153 statements · 50% with external sources · numbers in brackets are citations
- Immediately dangerous to life or health
- 3,240 milligram per cubic metre
- Vapor pressure
- 16 millimetre of mercury temperature: 68°F
- Lower flammable limit
- 1.8 volume percent
- Upper flammable limit
- 12.4 volume percent
- Ionization energy
- 9.27 eV
- 9.25 eV
- Time-weighted average exposure limit
- 15 milligram per cubic metre applies to jurisdiction: United States · runtime: 10 h
- Canonical SMILES
- C1=CC=NC=C1
1
- C1=CC=NC=C1
- Dynamic viscosity
- 0.94 poiseuille
- MCN code
- 2933.31.10
- Safety classification and labelling
- NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response nfpa health: 3 · nfpa fire: 3 · nfpa instability: 0
- Part of
- pyridine metabolic process subject has role: participant
1
- pyridine biosynthetic process subject has role: product
1
- pyridine catabolic process subject has role: reactant
1
- pyridine N-methyltransferase activity
1
- thiamine pyridinylase activity
1
- pyridine metabolic process subject has role: participant
- Found in taxon
- Coffea arabica
1
- Nicotiana tabacum
2
Sources- 1.Stated in The volatile bases of cigar smoke
- 2.Stated in Comparison of different extraction methods: steam distillation, simultaneous distillation and extraction and headspace co-distillation, used for the analysis of the volatile components in aged flue-cured tobacco leaves
- Cynara scolymus
- Helianthus tuberosus
- Mentha gentilis
- Camellia sinensis
1
- Capsicum annuum
1
- Garcinia mangostana
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- Coffea arabica
- Subject has role
- carcinogen
1
Sources- 1.Stated in California Proposition 65 list of chemicalsoehha.ca.gov/chemicals/pyridineRetrieved 2020-03-18
- carcinogen
- Electric dipole moment
- 2.215 debye
On other databases
67 identifiers linking pyridine across the web's reference databases
- Arab Encyclopedia concept ID1896
- Art & Architecture Thesaurus ID300380263
- Bibliothèque nationale de France ID12152312z
- BNCF Thesaurus ID20921
- CA PROP 65 IDpyridine
- CAMEO Chemicals ID1403
- Cannabis Database ID005349
- CAS Registry Number110-86-1
- CCDC Number1240729
- ChEBI ID16227
- ChEMBL IDCHEMBL266158
- ChemSpider ID1020
- CSD RefcodePYRDNA01
- Dewey Decimal Classification661.894
- DSSTOX compound identifierDTXCID101924
- DSSTox substance IDDTXSID9021924
- EC number203-809-9
- ECHA Substance Infocard ID100.003.464
- Encyclopædia Britannica Online IDscience/pyridine
- Encyclopædia Universalis IDpyridine
- Encyclopedia of China (Third Edition) ID (2026)3JG2cN
- Encyclopedia of China (Third Edition) old ID (2021)157519
- Freebase ID/m/05z2h
- Gmelin number1996
- GND ID4176469-9
- Gran Enciclopèdia Catalana IDpiridina
- Gran Enciclopèdia Catalana ID (former scheme)0132101
- Great Norwegian Encyclopedia IDpyridin
- Great Russian Encyclopedia portal IDpiridin-51541f
- HCIS ID3731
- HSDB ID118
- Human Metabolome Database IDHMDB0000926
- ICSC ID0323
- IEDB Epitope ID140099
- InChIInChI=1S/C5H5N/c1-2-4-6-5-3-1/h1-5H
- InChIKeyJUJWROOIHBZHMG-UHFFFAOYSA-N
- J9U entity ID987007551084505171
- JSTOR topic ID (archived)pyridines
- KBpedia IDPyridine
- KEGG IDC00747
- KNApSAcK IDC00053734
- LEM IDLEM201012216
- Lex IDpyridin
- Library of Congress Authorities IDsh85109332
- MassBank accession IDSM813501
- Microsoft Academic ID (discontinued)2779485729
- NDL Authority ID00569116
- NMRShiftDB structure ID10017437
- NSC number406123
- OpenAlex IDC2779485729
- OSHA Occupational Chemical Database ID119
- PDB ligand ID0PY
- PDB structure ID3V36
- PesticideInfo chemical IDPRI5487
- PubChem CID1049
- Reaxys registry number103233
- Römpp online IDRD-16-05128
- RTECS numberUR8400000
- Spectral Database for Organic Compounds ID518
- SPLASHsplash10-0fb9-9000000000-f99a956b2e7b0837d371
- SureChEMBL ID1048169
- UniChem compound ID19091
- UNIINH9L3PP67S
- Wellcome Collection concept IDuu4j7v69
- WordNet 3.1 Synset ID14716671-n
- Yale LUX IDconcept/4e015efb-3816-4a22-b69a-24d97a767913
- ZVG number13850