7-Amino-3-cephem-4-carboxylic acid is a cephalosporin core intermediate used in the manufacture of cephalosporin antibiotics. It features a bicyclic cephem ring system with an amino group at the 7-position and a carboxylic acid at the 4-position.
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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4-chloropyridine
pharmaceutical intermediate
2-(5-Amino-1,2,4-thiadiazol-3-yl)-2-(methoxyimino)acetic acid
pharmaceutical intermediate
(6R,7R)-7-Amino-3-[(5-methyl-2H-tetrazol-2-yl)methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
pharmaceutical intermediate
(Z)-2-(2-tert-Butoxycarbonylaminothiazol-4-yl)-2-pentenoic acid
pharmaceutical intermediate
7-Amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid diphenylmethyl ester
pharmaceutical intermediate
2-Amino-5-chloro-6-methylpyridine
pharmaceutical intermediate
2-Amino-5-chloro-4-picoline
pharmaceutical intermediate
Triphenylmethanethiol
pharmaceutical intermediate
The international HS code for 7-Amino-3-cephem-4-carboxylic acid (CAS 36923-17-8) is 2934.99.
2934.99
2934 99 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
(6R,7R)-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
RJFPBECTFIUTHB-INEUFUBQSA-N
C1C=C(N2[C@H](S1)[C@@H](C2=O)N)C(=O)O
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