cyanoform

Strong organic acid

Chemical compoundtype of chemical entityQ19903909

Also known as tricyanomethane · methanetricarbonitrile

Formula: C₄HN₃
1
Sources
1.Stated in PubChem“methanetricarbonitrile”Retrieved 2016-09-21
View statement on Wikidata ↗
Mass: 91.017 Da
1
Sources
1.Stated in PubChem“methanetricarbonitrile”Retrieved 2016-09-21
View statement on Wikidata ↗

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

Cyanoform (tricyanomethane) is an organic compound with the chemical formula HC(CN)3. It is a colorless liquid. It is a cyanocarbon and derivative of methane with three cyano groups. For many years, chemists have been unable to isolate this compound as a neat, free acid. However, in September 2015, reports surfaced of a successful isolation.

Overview

Chemistry

Computed by PubChem CID 5232958 (NIH) · Public domain

Molecular formula: C4HN3
Molecular weight: 91.07 g/mol
IUPAC name: methanetricarbonitrile
SMILES: C(#N)C(C#N)C#N
InChIKey: HFWIMJHBCIGYFH-UHFFFAOYSA-N
XLogP: -0.1
Topological polar surface area: 71.4 Å²
H-bond donors / acceptors: 0 / 3
Complexity: 151

Chemistry

All data

22 statements · 50% with external sources · numbers in brackets are citations

PKa: 5.1
2
Sources
1.dx.doi.org/10.1002/anie.201506753
2.Stated in The Existence of Tricyanomethane
View statement on Wikidata ↗
Canonical SMILES: C(#N)C(C#N)C#N
1
Sources
1.Stated in PubChem“methanetricarbonitrile”Retrieved 2016-09-21
View statement on Wikidata ↗
Subclass of: monoprotic acid
nitrile
carbon acid

On other databases

13 identifiers linking cyanoform across the web's reference databases

Data quality

statements

50%

externally sourced

Source last edited May 6, 2026. AIDb refreshes this page daily.

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AIDb. (2026). cyanoform (Q19903909). Retrieved from https://aidb.si/e/cyanoform-Q19903909