Safety Reference
Danger
H301Toxic if swallowed
H315Causes skin irritation
H319
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
CAS 135-20-6
Cupferron is an analytical reagent used for the separation and precipitation of metals. It is also employed as a quantitative reagent for vanadates and titanium, and for the colorimetric estimation of aluminum.
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.
The international HS code for Cupferon (CAS 135-20-6) is 2929.90.
2929.90
2929 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.
azanium N-oxido-N-phenylnitrous amide
GDEBSAWXIHEMNF-UHFFFAOYSA-O
C1=CC=C(C=C1)N(N=O)[O-].[NH4+]