Home/Compounds/Pharmaceutical Intermediate/(6R,7R)-3-Hydroxy-8-oxo-7-[(phenylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid diphenyl methyl ester
C28H24N2O5S
500.6 g/mol
Pharmaceutical IntermediateDanger
(6R,7R)-Benzhydryl 3-hydroxy-8-oxo-7-(2-phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
CAS54639-48-4EC611-177-4
Category
Pharmaceutical Intermediate
Compound Class
Other
Primary Use
Pharmaceutical Intermediate
This compound is a protected cephalosporin intermediate featuring a benzhydryl ester at the C-2 position and a hydroxy group at the C-3 position. It is a key building block in the synthesis of cephalosporin antibiotics.
Cephalosporin intermediatePharmaceutical research compound
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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Safety Reference
Danger
H317May cause an allergic skin reaction
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
Customs Tariff Classification
The international HS code for (6R,7R)-Benzhydryl 3-hydroxy-8-oxo-7-(2-phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate (CAS 54639-48-4) is 2934.99.
HS code (international, 6-digit)
2934.99
EU CN code (8-digit)
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.
Identifiers
IUPAC Name
benzhydryl (6R,7R)-3-hydroxy-8-oxo-7-[(2-phenylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
InChIKey
HJINVAQLVZRFTL-YIXXDRMTSA-N
SMILES
C1C(=C(N2[C@H](S1)[C@@H](C2=O)NC(=O)CC3=CC=CC=C3)C(=O)OC(C4=CC=CC=C4)C5=CC=CC=C5)O
Synonyms (15)
- Ceftizoxime Impurity 15
- Ceftizoxime Impurity 67
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