头孢克洛杂质标准品

头孢克洛杂质A. (2R)-2-amino-2-phenylacetic acid (phenylglycine) Chemical Formula: C8H9NO2 Molecular Weight: 151.16 头孢克洛杂质B (6R,7R)-7-amino-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid Chemical Formula: C7H7ClN2O3S Molecular Weight: 234.66 头孢克洛杂质C (6R,7R)-7-[[(2S)-2-amino-2-phenylacetyl]amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid Chemical Formula: C15H14ClN3O4S Molecular Weight: 367.81 头孢克洛杂质D (2R,6R,7R)- and(2S,6R,7R)-7-[[(2R)-2-amino-2-phenylacetyl]amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid (delta-3-cefaclor) Chemical Formula: C15H14ClN3O4S Molecular Weight: 367.81 头孢克洛杂质E 2-[[(2R)-2-amino-2-phenylacetyl]amino]-2-(5-chloro-4-oxo-3,4-dihydro-2H-1,3-thiazin-2-yl)acetic acid Chemical Formula: C14H14ClN3O4S Molecular Weight: 355.80 头孢克洛杂质F 3-phenylpyrazin-2-ol Chemical Formula: C10H8N2O Molecular Weight: 172.18 头孢克洛杂质G (2R,6R,7R)- and(2S,6R,7R)-7-[[(2R)-2-amino-2-phenylacetyl]amino]-3-methylene-8-oxo-5-thia-1-azabicyclo[4.2.0]octane-2-carboxylicacid (isocefalexine) Chemical Formula: C16H17N3O4S Molecular Weight: 347.39 头孢克洛杂质H (6R,7R)-7-[[(2R)-2-[[(2R)-2-amino-2-phenylacetyl]amino]-2-phenylacetyl]amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylicacid (N-phenylglycyl cefaclor) Chemical Formula: C23H21ClN4O5S Molecular Weight: 500.95