Calcobutrol is a calcium chelate of a butrol derivative, used as an intermediate in pharmaceutical manufacturing for diagnostic imaging agents.
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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Gadobutrol
pharmaceutical raw material
Gadovist
pharmaceutical raw material
2,2'-(4,10-bis(1,3,4-Trihydroxybutan-2-yl)-1,4,7,10-tetraazacyclododecane-1,7-diyl)diacetic acid
pharmaceutical intermediate
2,2'-(4,10-Bis(1,3,4-trihydroxybutan-2-yl)-1,4,7,10-tetraazacyclododecane-1,7-diyl)diacetic acid tetrahydrochloride
pharmaceutical raw material
9-(2-Deoxypentofuranosyl)-2-fluoro-6-[2-(trimethylsilyl)ethoxy]-9H-purine
pharmaceutical intermediate
2-Chloro-4-fluorobenzylamine
pharmaceutical intermediate
N,N'-Di-Boc-1H-pyrazole-1-carboxamidine
pharmaceutical intermediate
(S)-4-(4-Aminobenzyl)-2(1H)-oxazolidinone
pharmaceutical intermediate
The international HS code for Calcobutrol (CAS 151878-23-8) 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.
calcium;2-[4,10-bis(carboxylatomethyl)-7-[(2R,3S)-1,3,4-trihydroxybutan-2-yl]-1,4,7,10-tetrazacyclododec-1-yl]acetate;hydron
GCLKDXFGQNCFQW-CTHHTMFSSA-L
[H+].C1CN(CCN(CCN(CCN1CC(=O)[O-])CC(=O)[O-])[C@H](CO)[C@@H](CO)O)CC(=O)[O-].[Ca+2]
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