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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Reference substances

Reference substances

Currently viewing:
IUPAC name:
hydrogen cyanide

Inventory

EC number:
200-821-6
EC name:
Hydrogen cyanide
CAS number:
74-90-8
CAS number:
74-90-8
Synonyms
Names:
Hydrocyanic acid
Identifier:
IUPAC name
cyanide
Identifier:
other: InChl
InChI=1/CN/c1-2/q-1
Identifier:
other: SMILES notation
[C-]#N
hydrocyanic acid

Molecular and structural information

Molecular formula:
CHN
Molecular weight:
26.018
SMILES notation:
C#N
InChl:
InChI=1S/CHN/c1-2/h1H
Structural formula:
Chemical structure

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