Impurity Reference Standard - Products

Cefradine

CAT No: CL-CFPR-01 CAS No: 38821-53-3 Mol Wt: 349.4 Mol F: C16H19N3O4S Inv Status: Custom Synthesis

Chemical Name: (6R,7R)-7-[[(2R)-amino(cyclohexa-1,4-dienyl)acetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Cefradine EP Impurity A

CAT No: CL-CFPR-02 CAS No: 22252-43-3 Mol Wt: 214.2 Mol F: C8H10N2O3S Inv Status: Custom Synthesis

Chemical Name: (6R,7R)-7-amino-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Cefradine EP Impurity B

CAT No: CL-CFPR-03 CAS No: 26774-88-9 Mol Wt: 153.2 Mol F: C8H11NO2 Inv Status: Custom Synthesis

Chemical Name: (2R)-amino(cyclohexa-1,4-dienyl)acetic acid

Cefradine EP Impurity E

CAT No: CL-CFPR-04 CAS No: 215172-75-1 Mol Wt: 363.4 Mol F: C16H17N3O5S Inv Status: Custom Synthesis

Chemical Name: (6R,7R)-7-[[(2R)-amino(2-hydroxyphenyl)acetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Cefradine EP Impurity F

CAT No: CL-CFPR-05 CAS No: 34876-35-2 Mol Wt: 130.2 Mol F: C5H6O2S Inv Status: Custom Synthesis

Chemical Name: 3-Hydroxy-4-methylthiophen-2(5H)-one

Cefradine EP Impurity G

CAT No: CL-CFPR-06 CAS No: 146794-70-9 Mol Wt: 298.4 Mol F: C13H18N2O4S Inv Status: Custom Synthesis

Chemical Name: (6R,7R)-7-[(2,2-dimethylpropanoyl)amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid