Impurity Reference Standard - Products

Cefoperazone Dihydrate

CAT No: CL-CPRZ-01 CAS No: 113826-44-1 Mol Wt: 645.7 : 2(18.0) Mol F: C25H27N9O8S2 : 2(H2O) Inv Status: Custom Synthesis

Chemical Name: 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[[[[(4-ethyl-2,3-dioxo-1-piperazinyl)carbonyl] amino](4-hydroxyphenyl)acetyl]amino]-3-[[(1-methyl-1H- tetrazol-5-yl)thio]methyl]-8-oxo-, [6R-[6alpha,7beta (R*)]]-, dihydrate (as per USP)

Cefoperazone EP Impurity A

CAT No: CL-CPRZ-02 CAS No: 73240-08-1 Mol Wt: 529.5 Mol F: C23H23N5O8S Inv Status: Custom Synthesis

Chemical Name: (5aR,6R)-6-[[(2R)-2-[[(4-Ethyl-2,3-dioxopiperazin-1-yl)carbonyl]amino]-2-(4-hydroxyphenyl)acetyl]amino]-5a,6dihydro-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazine-1,7(4H)-dione

Cefoperazone EP Impurity B

CAT No: CL-CPRZ-03 CAS No: 711598-76-4 Mol Wt: 645.7 Mol F: C25H27N9O8S2 Inv Status: Custom Synthesis

Chemical Name: (6R,7R)-7-[[(2R)-2-[[(4-Ethyl-2,3-dioxopiperazin-1-yl)carbonyl]amino]-2-(4-hydroxyphenyl)acetyl]amino]-3-[(4-methyl5-thioxo-4,5-dihydro-1H-tetrazol-1-yl)methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Cefoperazone EP Impurity C

CAT No: CL-CPRZ-04 CAS No: 13183-79-4 Mol Wt: 116.2 Mol F: C2H4N4S Inv Status: Custom Synthesis

Chemical Name: 1-Methyl-1H-tetrazole-5-thiol

Cefoperazone EP Impurity D

CAT No: CL-CPRZ-05 CAS No: 37539-03-0 Mol Wt: 313.4 Mol F: C10H11N5O3S2 Inv Status: Custom Synthesis

Chemical Name: (6R,7R)-7-Amino-8-oxo-3-[(1H-1,2,3-triazol-4-ylsulfanyl)methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Cefoperazone EP Impurity E

CAT No: CL-CPRZ-06 CAS No: 957-68-6 Mol Wt: 272.3 Mol F: C10H12N2O5S Inv Status: Custom Synthesis

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

Cefoperazone EP Impurity F

CAT No: CL-CPRZ-07 CAS No: 1315481-36-7 Mol Wt: 645.7 Mol F: C25H27N9O8S2 Inv Status: Custom Synthesis

Chemical Name: (6R,7S)-7-[[(2R)-2-[[(4-Ethyl-2,3-dioxopiperazine-1-yl)carbonyl]amino]-2-(4-hydroxyphenyl)acetyl]amino]-3-[[(1methyl-1H-tetrazol-5-yl)sulfanyl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Cefoperazone Impurity 1

CAT No: CL-CPRZ-08 CAS No: 59703-00-3 Mol Wt: 204.6 Mol F: C7H9ClN2O3 Inv Status: Custom Synthesis

Chemical Name: 4-Ethyl-2,3-dioxopiperazine-1-carbonyl chloride

Cefoperazone Impurity 2

CAT No: CL-CPRZ-09 CAS No: 62893-24-7 Mol Wt: 335.3 Mol F: C15H17N3O6 Inv Status: Custom Synthesis

Chemical Name: (?R)-?-[[(4-Ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino]-4-hydroxy-benzeneacetic Acid

Cefoperazone Impurity 10

CAT No: CL-CPRZ-10 CAS No: NA Mol Wt: 547.5 Mol F: C23H25N5O9S Inv Status: Custom Synthesis

Chemical Name: 7-(2-(4-Ethyl-2,3-dioxopiperazine-1-carboxamido)-2-(4-hydroxyphenyl)acetamido)-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Cefoperazone Impurity 4

CAT No: CL-CPRZ-11 CAS No: 1416704-15-8 Mol Wt: 186.2 Mol F: C7H10N2O4 Inv Status: Custom Synthesis

Chemical Name: 4-Ethyl-2,3-dioxopiperazine-1-carboxylic acid

Cefoperazone Impurity 5

CAT No: CL-CPRZ-12 CAS No: NA Mol Wt: 575.6 Mol F: C24H25N5O8S2 Inv Status: Custom Synthesis

Chemical Name: N-((R)-2-(((7aR,8R)-1,9-dioxo-1,3,4,6,7a,8-Hexahydro-9H-azeto[2,1-b][1,4]oxathiepino[6,5-d][1,3]thiazin-8-yl)amino)-1-(4-hydroxyphenyl)-2-oxoethyl)-4-ethyl-2,3-dioxopiperazine-1-carboxamide

Cefoperazone Impurity 6

CAT No: CL-CPRZ-13 CAS No: NA Mol Wt: 531.6 Mol F: C23H25N5O8S Inv Status: Custom Synthesis

Chemical Name: (6R,7R)-7-((S)-2-(4-Ethyl-2,3-dioxopiperazine-1-carboxamido)-2-(4-hydroxyphenyl)acetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Cefoperazone Impurity 7

CAT No: CL-CPRZ-14 CAS No: NA Mol Wt: 269.4 Mol F: C9H11N5OS2 Inv Status: Custom Synthesis

Chemical Name: 3-(((1-Methyl-1H-tetrazol-5-yl)thio)methyl)-5-thia-1-azabicyclo[4.2.0]oct-2-en-8-one

Cefoperazone Impurity 8

CAT No: CL-CPRZ-15 CAS No: 1204325-21-2 Mol Wt: 392.2 Mol F: C16H21BN4O7 Inv Status: Custom Synthesis

Chemical Name: (R)-((2-(4-Ethyl-2,3-dioxopiperazine-1-carboxamido)-2-(4-hydroxyphenyl)acetamido)methyl)boronic acid

Cefoperazone Impurity 9

CAT No: CL-CPRZ-16 CAS No: NA Mol Wt: 563.6 Mol F: C23H25N5O8S2 Inv Status: Custom Synthesis

Chemical Name: (6R,7R)-7-((R)-2-(4-Ethyl-2,3-dioxopiperazine-1-carboxamido)-2-(4-hydroxyphenyl)acetamido)-3-(mercaptomethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Cefoperazone Impurity 11

CAT No: CL-CPRZ-17 CAS No: 73240-09-2 Mol Wt: 547.5 Mol F: C23H25N5O9S Inv Status: Custom Synthesis

Chemical Name: 2-(2-(4-Ethyl-2,3-dioxopiperazine-1-carboxamido)-2-(4-hydroxyphenyl)acetamido)-2-(7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl)acetic acid

Cefoperazone Impurity 12

CAT No: CL-CPRZ-18 CAS No: NA Mol Wt: 547.5 Mol F: C23H25N5O9S Inv Status: Custom Synthesis

Chemical Name: (2-(4-Ethyl-2,3-dioxopiperazine-1-carboxamido)-2-(4-hydroxyphenyl)acetyl)((7-oxo-5,7-dihydro-4H-furo[3,4-d][1,3]thiazin-1(2H)-yl)methyl)carbamic acid

Cefoperazone Impurity 13

CAT No: CL-CPRZ-19 CAS No: NA Mol Wt: 663.7 Mol F: C25H29N9O9S2 Inv Status: Custom Synthesis

Chemical Name: (R)-2-((S)-Carboxy((R)-2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)-2-(4-hydroxyphenyl)acetamido)methyl)-5-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid

Type:Impurity Reference Standard

API NAME:Cefoperazone

Total Products: 19

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