Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
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(R)-2-oxiranylanisole
research compound
Sourcing Cytosine?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Cytosine is an aminopyrimidine that functions as a pyrimidine nucleobase found in nucleic acids. It is a naturally occurring compound and serves as a metabolite in various organisms, including humans.
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 Cytosine (CAS 71-30-7) is 2933.59.
2933.59
2933 59 95
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
6-amino-1H-pyrimidin-2-one
OPTASPLRGRRNAP-UHFFFAOYSA-N
C1=C(NC(=O)N=C1)N