2-Mercaptobenzothiazolyl-(Z)-(2-aminothiazol-4-yl)-2-(tert-butoxycarbonyl) isopropoxyiminoacetate

2-Mercaptobenzothiazolyl-(Z)-(2-aminothiazol-4-yl)-2-(tert-butoxycarbonyl) isopropoxyiminoacetate

Ceftazidime intermediate

Ceftriaxone Impurity D

pharmaceutical impurity reference standard

DIPHENYLMETHYL (6R,7R)-7-AMINO-8-OXO-5-THIA-1-AZABICYCLO[4.2.0]OCT-2-ENE-2-CARBOXYLATE

cephalosporin intermediate

1-Ethoxycarbonyl-5-methyl-(3R)-3-tert-butyl-dimethylsilyloxypentanedioate

Pharmaceutical intermediate

3-(2-Bromopropanoyl)spiro[benzo[e][1,3]oxazine-2,1'-cyclohexan]-4(3H)-one

pharmaceutical intermediate

2,4-Difluorobenzoic acid

Pharmaceutical intermediate for synthesis

4-Amino-6-methyl-4,5-dihydro-1,2,4-triazin-3(2H)-one--hydrogen chloride (1/1)

Pharmaceutical intermediate

S-2-Benzothiazolyl (Z)-2-(2-aminothiazol-4-yl)-2-acetyloxyiminothioacetate

pharmaceutical intermediate