Colistin-1,3,5,9-tetramethanesulfonic A acid is a polymyxin antibiotic active pharmaceutical ingredient used in pharmaceutical manufacturing. It is a large, flexible, highly polar macrocyclic compound containing multiple amide, amine, and alcohol functional groups, with stereochemistry marked in its structure.
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.
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Polymyxin B1
pharmaceutical raw material
Polymyxin B1
pharmaceutical raw material
Hydralazine hydrochloride
pharmaceutical raw material
Flunarizine hydrochloride
pharmaceutical raw material
Chlorambucil
pharmaceutical raw material
Disophenol
pharmaceutical raw material
Colistin sulfate
pharmaceutical raw material
The international HS code for Colistin-1,3,5,9-tetramethanesulfonic A acid (CAS 30387-39-4) 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.
[2-[(2S,5R,8S,11S,14S,17S,22S)-11-(2-aminoethyl)-17-[(1R)-1-hydroxyethyl]-22-[[(2S)-2-[[(2S,3R)-3-hydroxy-2-[[(2S)-2-[[(6S)-6-methyloctanoyl]amino]-4-(sulfomethylamino)butanoyl]amino]butanoyl]amino]-4-(sulfomethylamino)butanoyl]amino]-5,8-bis(2-methylpropyl)-3,6,9,12,15,18,23-heptaoxo-14-[2-(sulfomethylamino)ethyl]-1,4,7,10,13,16,19-heptazacyclotricos-2-yl]ethylamino]methanesulfonic acid
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Sourcing Colistin-1,3,5,9-tetramethanesulfonic A acid?
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