Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
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7-Azatryptophan
research compound
Sourcing Guanine?
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Guanine is one of the four main nucleotide bases found in the nucleic acids DNA and RNA. In DNA, it pairs specifically with cytosine.
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 Guanine (CAS 73-40-5) 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.
2-amino-1,7-dihydropurin-6-one
UYTPUPDQBNUYGX-UHFFFAOYSA-N
C1=NC2=C(N1)C(=O)NC(=N2)N