Safety Reference
Warning
H312Harmful in contact with skin
H332Harmful if inhaled
H335May cause respiratory irritation
H361Suspected of damaging fertility or the unborn child
Sourcing Rifaximin?
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Colistimethate sodium
pharmaceutical raw material
Sourcing Rifaximin?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Rifaximin is a compound used as an antibiotic active pharmaceutical ingredient. It is characterized by a complex polycyclic structure containing multiple aromatic rings and heterocycles, with a molecular weight of approximately 785 g/mol and a high topological polar surface area.
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 Rifaximin (CAS 80621-81-4) is 2941.90.
2941.90
2941 90 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
[(7S,9E,11S,12R,13S,14R,15R,16R,17S,18S,19E,21Z)-2,15,17,36-tetrahydroxy-11-methoxy-3,7,12,14,16,18,22,30-octamethyl-6,23-dioxo-8,37-dioxa-24,27,33-triazahexacyclo[23.10.1.14,7.05,35.026,34.027,32]heptatriaconta-1(35),2,4,9,19,21,25(36),26(34),28,30,32-undecaen-13-yl] acetate
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