Cyanic acid

HCID 540CAS 420-05-3

Basic information

Standard SMILES
N#CO
InChIKey
XLJMAIOERFSOGZ-UHFFFAOYSA-N
Molecular formula
CHNO
Average molar mass
43.025 g/mol
Monoisotopic mass
43.00581365

Overview

Cyanic acid is a pseudohalogen oxoacid and a one-carbon compound. It is a conjugate acid of a cyanate. It is a tautomer of an isocyanic acid.

Names & identifiers

Preferred name
Cyanic acid
IUPAC
cyanic acid
English name
Cyanic acid
Molecular formula
CHNO
Molecular weight
43.02

Names & synonyms

Cyanic acidZyansaeure420-05-3Cyansaeurehydroxidonitridocarbonnitridooxocarbonic acidacide cyaniqueacidum cyanicumacido cianicohydrogen nitridooxocarbonateUNII-460E3FHT8O[C(N)OH]
Show more names
460E3FHT8OCHEBI:28024CYANIC ACID [MI]DTXSID3074812(C(N)OH)RefChem:129020DTXCID3040011hydrogen nitridooxocarbonate;hydroxidonitridocarbon;nitridooxocarbonic acid

Database identifiers

CAS
420-05-3、71000-82-3
PubChem CID
540
DTXSID
DTXSID3074812
ChEMBL
CHEMBL1161700
ChEBI
CHEBI:28024
UNII
460E3FHT8O
EC Number
609-981-5
Nikkaji
J3.280H

Properties

Computed structural properties

XLogP
0.1
Topological polar surface area
44 Ų
Hydrogen bond donors
1
Hydrogen bond acceptors
2
Rotatable bonds
0
Heavy atoms
3

Experimental & physicochemical properties

SpringerMaterials PropertiesAtomic environment
Density1.140 @ 20°C
Boiling Point23 °C @760 [mm Hg]
Melting Point-86 °C
Physical DescriptionSolid

Physicochemical properties

Melting point
-86 °C · -86 °C
Boiling point
23 °C · 23 °C
Density
1 · 1+-.0.06 g/cm3(Predicted)
pka
3.83 · 3.83±0.58(Predicted)

Safety & regulation

Safety & protection

Protective Action Criteria (PAC) · 3 items

0.75 [mg/m3]

8.3 [mg/m3]

41 [mg/m3]

Chemistry & industry

Suppliers2 total

Shaanxi Didu New Materials Co. Ltd+86-86-17392712779 +86-13289823923 · [email protected]
SUZHOU SENFEIDA CHEMICAL CO.,LTD+86-0512-83500002 +86-15195660023 · [email protected]

Related reactions

16 records

Linked notes

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