CAS:1000980-60-8|Delta2-Ceftazidime (>80%)

Catalogue Number:C244110
Chemical Name:Delta2-Ceftazidime (>80%)
Synonyms:1-[[(6R,7R)-7-[[(2Z)-2-(2-Amino-4-thiazolyl)-2-[(1-carboxy-1-methylethoxy)imino]acetyl]amino]-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-en-3-yl]methyl]pyridinium; Δ-2-Ceftazidime; Ceftazidime Impurity A (EP); Ceftazidime EP Impurity A
Impurity:Ceftazidime EP Impurity A
CAS Number:1000980-60-8
Alternate CAS #
217796-42-4 – for (2R)-isomer
Molecular Formula:C₂₂H₂₂N₆O₇S₂
Appearance:White to Brown Solid
Melting Point:>136°C (dec.)
Molecular Weight:546.58
Storage:-20°C, Hygroscopic, Light sensitive
Solubility:DMSO (Slightly), Methanol (Slightly, Heated), Water (Slightly)
Stability
Hygroscopic, Light Sensitive
Category:Standards; Chiral Molecules; Pharmaceutical/API Drug Impurities/Metabolites;
Applications:∆2-Ceftazidime, 90% (Ceftazidime EP Impurity A) is a Ceftazidime isomer, an impurity of Ceftazidime (C244100).
References:Vilanova, B., et al.: Helv. Chim. Acta, 76, 2789
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