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Hydrogen cyanamide (CAS 420-04-2) | ChemAbout

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Sourcing Hydrogen cyanamide?

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CH₂N₂

42.04 g/mol

AgrochemicalDanger

Hydrogen cyanamide

CAS420-04-2EC206-992-3

Category

Agrochemical

Compound Class

Amine

Primary Use

Agricultural pesticide and intermediate

This compound is a colorless, deliquescent crystalline solid with a melting point of 45 °C and a boiling point of 260 °C. It is quite soluble in water and also dissolves in various organic solvents.

Agricultural pesticide for early post-emergence control of broad-leaved weeds in alliums and bulb flowersUsed to remove side shoots and inhibit sprouting in hops and vinesIntermediate in the organic synthesis of dicyandiamide for melamine manufacturing

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

Safety Reference

Corrosive

Toxic

Harmful

Health Hazard

Environmental Hazard

Danger

Customs Tariff Classification

The international HS code for Hydrogen cyanamide (CAS 420-04-2) is 2853.90.

HS code (international, 6-digit)

2853.90

EU CN code (8-digit)

2853 90 90

Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers

IUPAC Name

cyanamide

InChIKey

XZMCDFZZKTWFGF-UHFFFAOYSA-N

SMILES

C(#N)N

Synonyms (23)

H2NCN
Alzogur
Amidocyanogen
Aminonitrile
Calcium Cyanamide, Citrated
Carbamonitrile
Carbodiamide
Caswell No. 485A
Cyanamide
Cyanamide (JP18)
Cyanamide aq
Cyanamide, Citrated Calcium
Cyanoamine
Cyanogen nitride
Cyanogenamide
Deurbraak
Hydrogen cyanamide
N-Cyanoamine
TsAKS
USAF EK-1995
aminoformonitrile
cyanamine

H301Toxic if swallowed

H311Toxic in contact with skin

H314Causes severe skin burns and eye damage

H317May cause an allergic skin reaction

H318Causes serious eye damage

H351Suspected of causing cancer

H373May cause damage to organs through prolonged or repeated exposure

H412Harmful to aquatic life with long lasting effects

H315Causes skin irritation

H319Causes serious eye irritation

H361Suspected of damaging fertility or the unborn child

H335May cause respiratory irritation

H370Causes damage to organs

H372Causes damage to organs through prolonged or repeated exposure

H400Very toxic to aquatic life

H410Very toxic to aquatic life with long lasting effects

H341Suspected of causing genetic defects