Safety Reference
Danger
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 151-56-4
pharmaceutical intermediate
Aziridine is a highly reactive, strained three-membered heterocyclic amine compound. It is primarily significant as the monomer used in the industrial production of polyethyleneimine and other organic chemicals.
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 Aziridine (CAS 151-56-4) is 2933.99.
2933.99
2933 99 80
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
aziridine
NOWKCMXCCJGMRR-UHFFFAOYSA-N
C1CN1