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Cefixime Impurity 1 Cefixime Impurity 1. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C15H17N5O6S2. Mole Weight: 427.45. Catalog: APB11575. Alfa Chemistry Analytical Products 4
Cefixime Impurity 10 Cefixime Impurity 10. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (R, Z) -2- ( ( (Z) -2- (2-aminothiazol-4-yl) -2- ( (carboxymethoxy) imino) acetamido) methyl) -5-ethylidene-5, 6-dihydro-2H-1, 3-thiazine-4-carboxylic acid. Molecular Formula: C15H17N5O6S2. Mole Weight: 427.46. Catalog: APB04686. Alfa Chemistry Analytical Products 4
Cefixime Impurity 11 Cefixime Impurity 11. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 5-oxide. CAS No. 1335555-87-7. Molecular Formula: C16H15N5O8S2. Mole Weight: 469.45. Catalog: APB1335555877. Alfa Chemistry Analytical Products
Cefixime Impurity 12 Cefixime Impurity 12. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (2R,2aR)-2-amino-6-hydroxy-2,2a,5,6-tetrahydro-1H-azeto[2,1-b]cyclopenta[d][1,3]thiazine-1,7(4H)-dione. Molecular Formula: C9H10N2O3S. Mole Weight: 226.25. Catalog: APB04685. Alfa Chemistry Analytical Products 4
Cefixime Impurity 13 Cefixime Impurity 13. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (6R,7R)-7-amino-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid. Molecular Formula: C9H10N2O3S. Mole Weight: 226.25. Catalog: APB04684. Alfa Chemistry Analytical Products 4
Cefixime Impurity 14 Cefixime Impurity 14. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (6R,7R)-7-((Z)-2-(2-((6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxamido)thiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid. Molecular Formula: C32H28N10O13S4. Mole Weight: 888.88. Catalog: APB04682. Alfa Chemistry Analytical Products 4
Cefixime Impurity 15 Cefixime Impurity 15. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-nitrobenzyl 7-amino-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride. CAS No. 53483-70-8. Molecular Formula: C14H12ClN3O5S·HCl. Mole Weight: 406.24. Catalog: APB53483708. Alfa Chemistry Analytical Products 3
Cefixime Impurity 16 Cefixime Impurity 16. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 2-(((E)-(1-(2-aminothiazol-4-yl)-2-((((2R)-5-methyl-7-oxo-2,4,5,7-tetrahydro-1H-furo[3,4-d][1,3]thiazin-2-yl)methyl)amino)-2-oxoethylidene)amino)oxy)acetic acid. Molecular Formula: C15H17N5O6S2. Mole Weight: 427.06. Catalog: APB04683. Alfa Chemistry Analytical Products 4
Cefixime Impurity 2 Cefixime Impurity 2. Uses: For analytical and research use. Group: Impurity standards. CAS No. 33748-00-4. Molecular Formula: C17H16N2O4S. Mole Weight: 344.39. Catalog: APB33748004. Alfa Chemistry Analytical Products 2
Cefixime Impurity 4 Cefixime Impurity 4. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C32H28N10O13S4. Mole Weight: 888.87. Catalog: APB11576. Alfa Chemistry Analytical Products 4
Cefixime Impurity 5 Cefixime Impurity 5. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C23H20N8O11S3. Mole Weight: 680.64. Catalog: APB11577. Alfa Chemistry Analytical Products 4
Cefixime Impurity 6 Cefixime Impurity 6. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C16H15N5O7S2. Mole Weight: 453.44. Catalog: APB11578. Alfa Chemistry Analytical Products 4
Cefixime Impurity 7 Cefixime Impurity 7. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (6R,7R)-7-amino-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid. CAS No. 79349-82-9. Molecular Formula: C9H10N2O3S. Mole Weight: 226.25. Catalog: APB79349829. Alfa Chemistry Analytical Products 3
Cefixime Impurity 7 Cefixime Impurity 7. Uses: For analytical and research use. Group: Impurity standards. CAS No. 79368-92-6. Molecular Formula: C20H23N5O7S2. Mole Weight: 509.55. Catalog: APB79368926. Alfa Chemistry Analytical Products 3
Cefixime Impurity (7-AVCA) A key intermediate in the manufacturing of Cephalosporin compounds. Synonyms: (6R,7R)-7-Amino-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid; (6R-trans)-7-Amino-3-ethenyl-8-oxo-5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid; 7-AVCA. Grades: > 95%. CAS No. 79349-82-9. Molecular formula: C9H10N2O3S. Mole weight: 226.26. BOC Sciences 7
Cefixime Impurity 8 Cefixime Impurity 8. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (Z)-2-(((1-(2-aminothiazol-4-yl)-2-(benzo[d]thiazol-2-ylthio)-2-oxoethylidene)amino)oxy)acetic acid. Molecular Formula: C14H10N4O4S3. Mole Weight: 394.45. Catalog: APB04687. Alfa Chemistry Analytical Products 4
Cefixime Impurity 9 Cefixime Impurity 9. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-((2-methoxy-2-oxoethoxy)imino)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid. CAS No. 88621-01-6. Molecular Formula: C17H17N5O7S2. Mole Weight: 467.48. Catalog: APB88621016. Alfa Chemistry Analytical Products 3
Cefixime impurity A Cefixime EP Impurity A is an impurity of the third generation cephalosporin antibiotic, Cefixime. Synonyms: α-[[(Z)-2-(2-amino-4-thiazolyl)-2-[(carboxymethoxy)imino]acetyl]amino]-2-[(2R)-5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl]acetic Acid. Grades: > 95%. CAS No. 1335475-08-5. Molecular formula: C16H17N5O8S2. Mole weight: 471.47. BOC Sciences 7
Cefixime Impurity A Cefixime Impurity A. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 2-((Z)-2-(2-aminothiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-2-((2R)-5-methyl-7-oxo-2,4,5,7-tetrahydro-1H-furo[3,4-d][1,3]thiazin-2-yl)acetic acid. CAS No. 1614255-90-1. Molecular Formula: C16H17N5O8S2. Mole Weight: 471.46. Catalog: APB1614255901. Alfa Chemistry Analytical Products 2
Cefixime Impurity B (Mixture of Diastereomers) Cefixime EP Impurity B is an impurity of the third generation cephalosporin antibiotic, Cefixime. Synonyms: Acetic acid, 2- [ [ (Z) ?- [1- (2-amino-4-thiazolyl) ?-2-oxo-2- [ [ (1, ?2, ?5, ?7-tetrahydro-5-methyl-7-oxo-4H-furo [3, ?4-d] ? [1, ?3] ?thiazin-2-yl) ?methyl] ?amino] ?ethylidene] ?amino] ?oxy] ?-. Grades: > 95%. CAS No. 1335475-19-8. Molecular formula: C15H17N5O6S2. Mole weight: 427.46. BOC Sciences 7
Cefixime Impurity D Cefixime EP Impurity D is an impurity of the third generation cephalosporin antibiotic, Cefixime. Grades: > 95%. CAS No. 97164-56-2. Molecular formula: C16H15N5O7S2. Mole weight: 453.46. BOC Sciences 7
Cefixime Impurity E Cefixime EP Impurity E is an impurity of the third generation cephalosporin antibiotic, Cefixime. Synonyms: Cefixime Impurity E; 72701-01-0; (6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(carboxymethoxyimino)acetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; (6R,7R)-7-({(2Z)-2-(2-Amino-1,3-thiazol-4-yl)-2-[(carboxymethoxy)imino]acetyl}amino)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; DTXSID00747524; (6R,7R)-7-[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-[(carboxymethoxy)imino]acetamido]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid. Grades: > 95%. CAS No. 72701-01-0. Molecular formula: C15H15N5O7S2. Mole weight: 441.44. BOC Sciences 7
Cefixime Impurity F Cefixime EP Impurity F is an impurity of the third generation cephalosporin antibiotic, Cefixime. Synonyms: Cefixime Ethyl Ester Sodium Salt; (6R,7R)-7-[[(Z)-2-(2-aminothiazol-4-yl)-2-[(2-ethoxy-2- oxoethoxy)imino]acetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2- ene-2-carboxylic acid. Grades: > 95%. CAS No. 79368-95-9. Molecular formula: C18H19N5O7S2. Mole weight: 481.51. BOC Sciences 7
Cefixime Impurity F Cefixime Impurity F. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-((2-ethoxy-2-oxoethoxy)imino)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid. Molecular Formula: C18H19N5O7S2. Mole Weight: 481.5. Catalog: APB04688. Alfa Chemistry Analytical Products 4
Cefixime EP Impurity A (Technical Grade) (Mixture of Diastereomers) Cefixime EP Impurity A (Technical Grade) (Mixture of Diastereomers). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Cefixime Imp. A (EP). CAS No. 1614255-90-1. Pack Sizes: 5MG. IUPAC Name: 2-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(carboxymethoxyimino)acetyl]amino]-2-[(2R)-5-methyl-7-oxo-1,2,4,5-tetrahydrofuro[3,4-d][1,3]thiazin-2-yl]acetic acid. Molecular Formula: C16H17N5O8S2. Mole Weight: 471.46. Catalog: APS1614255901. SMILES: CC1OC (=O)C2=C1CS[C@@H] (N2)C (NC (=O)\C (=N/OCC (=O)O)\c3csc (N)n3)C (=O)O. Format: Neat. Shipping: Dry ice. Alfa Chemistry Analytical Products
Cefixime EP Impurity B Cefixime EP Impurity B. Group: Biochemicals. Alternative Names: 2- [ [ (Z) - [1- (2-amino-4-thiazolyl) -2- [ [ [ (2R, 5RS) -5-methyl-7-oxo-1, 2, 5, 7-tetrahydro-4H-furo [3, 4-d] [1, 3] thiazin-2-yl] methyl] amino] -2-oxoethylidene] amino] oxy] acetic Acid. Grades: Highly Purified. CAS No. 1335475-19-8. Pack Sizes: 2.5mg. US Biological Life Sciences. USBiological 2
Worldwide
Cefixime EP Impurity B Cefixime EP Impurity B. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 2-(((Z)-(1-(2-aminothiazol-4-yl)-2-((((2R)-5-methyl-7-oxo-2,4,5,7-tetrahydro-1H-furo[3,4-d][1,3]thiazin-2-yl)methyl)amino)-2-oxoethylidene)amino)oxy)acetic acid. Molecular Formula: C15H17N5O6S2. Mole Weight: 427.46. Catalog: APB04689. Alfa Chemistry Analytical Products 4
Cefixime EP Impurity B Cefixime EP Impurity B. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1335475-19-8. Molecular Formula: C15H17N5O6S2. Mole Weight: 427.45. Catalog: APB1335475198. Alfa Chemistry Analytical Products
Cefixime EP Impurity C Cefixime EP Impurity C. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (6R,7S)-7-((Z)-2-(2-aminothiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid. CAS No. 108691-83-4. Molecular Formula: C16H15N5O7S2. Mole Weight: 453.45. Catalog: APB108691834. Alfa Chemistry Analytical Products
Cefixime EP Impurity C (Cefixime 7-epimer) Cefixime EP Impurity C is an impurity of the third generation cephalosporin antibiotic, Cefixime. Synonyms: 108691-83-4; 7-epi-Cefixime (Cefixime EP Impurity C); (6R,7S)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(carboxymethoxyimino)acetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; Cefixime EP Impurity C (Cefixime 7-epimer); DTXSID20747309. Grades: > 95%. CAS No. 108691-83-4. Molecular formula: C16H15N5O7S2. Mole weight: 453.46. BOC Sciences 7
Cefixime EP Impurity D Cefixime EP Impurity D. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (6R,7R)-7-((E)-2-(2-aminothiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid. CAS No. 97164-56-2. Molecular Formula: C16H15N5O7S2. Mole Weight: 453.45. Catalog: APB97164562. Alfa Chemistry Analytical Products 4
Cefixime EP Impurity E Cefixime EP Impurity E. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid. CAS No. 72701-01-0. Molecular Formula: C15H15N5O7S2. Mole Weight: 441.44. Catalog: APB72701010. Alfa Chemistry Analytical Products 3
Cefixime EP Impurity F Cefixime EP Impurity F. Uses: For analytical and research use. Group: Impurity standards. CAS No. 79368-95-9. Molecular Formula: C18H19N5O7S2. Mole Weight: 481.5. Catalog: APB79368959. Alfa Chemistry Analytical Products 3
Cefixime Ethyl Ester Sodium Salt (Cefixime EP Impurity F) Cefixime Ethyl Ester Sodium Salt (Cefixime EP Impurity F). Uses: For analytical and research use. Group: Impurity standards. Catalog: APS001212. Format: Neat. Alfa Chemistry Analytical Products
Cefdinir Impurity 1 (Impurity G) 3-Desethenyl-3-methyl Cefdinir is an impurity of Cefdinir; a cephalosporin antibiotic structurally similar to Cefixime. Synonyms: (6R,7R)-7-[[(2Z)-2-(2-Amino-4-thiazolyl)-2-(hydroxyimino)acetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid; [6R-[6α , 7β (Z)]]-7-[[ (2-Amino-4-thiazolyl) (hydroxyimino)acetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4. 2. 0]oct. Grades: > 95%. CAS No. 71091-93-5. Molecular formula: C13H13N5O5S2. Mole weight: 383.41. BOC Sciences 7
Cefdinir Impurity A (αZ)-2-Amino-α-(hydroxyimino)-4-thiazoleacetamide is an impurity/ degradation product of Cefdinir ; a cephalosporin antibiotic structurally similar to Cefixime. Synonyms: (Z)-2-(2-Aminothiazol-4-yl)-2-(hydroxyimino)acetamide; Cefdinir Impurity A. Grades: > 95%. CAS No. 1450758-21-0. Molecular formula: C5H6N4O2S. Mole weight: 186.19. BOC Sciences 7
Cefdinir Related Compound B (6R-trans)-7-[[(2-Amino-4-thiazolyl)acetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid, is the impurity of Cefdinir , a Cephalosporin antibiotic structurally similar to Cefixime. It can be used to treat infections caused by several Gram-negative and Gram-positive bacteria. Synonyms: (6R-trans)-7-[[(2-Amino-4-thiazolyl)acetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid. Grades: > 95%. CAS No. 79350-10-0. Molecular formula: C14H14N4O4S2. Mole weight: 366.42. BOC Sciences 7
Cefixime methyl ester Cefixime Methyl Ester is an ester impurity of the third generation cephalosporin antibiotic, Cefixime. Synonyms: (6R,7R)-7-[[(2Z)-2-(2-Amino-4-thiazolyl)-2-[(2-methoxy-2-oxoethoxy)imino]acetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid; [6R-[6α,7β(Z)]]-7-[[(2-Amino-4-thiazolyl)[(2-methoxy-2-oxoethoxy)imino]acetyl]amino]-3-ethenyl-8-. Grades: > 95%. CAS No. 88621-01-6. Molecular formula: C17H17N5O7S2. Mole weight: 467.48. BOC Sciences 7

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