(Z)-2-formamido-alpha-(methoxyimino)thiazol-4-acetic acid

It appears as a white to pale yellow crystalline powder, sparingly soluble in water but soluble in organic solvents like ethanol or dichloromethane. (Z)-2-Formamido-α-(methoxyimino)thiazol-4-acetic acid is a β-lactam side-chain intermediate employed to synthesize advanced cephalosporin antibiotics, especially third- and fourth-generation derivatives.

API Name Cephalosporin g
CAS No 65872-43-7
Molecular Formula C7H7N3O4S
Molecular Weight 229.22 g/mol
Synonyms (2Z)-2-(2-formamido-1,3-thiazol-4-yl)-2-methoxyiminoacetic acid