Cefixime-impurities | Pharmaffiliates

cefixime and its Impurities

Cefixime is an antibiotic useful to treat a number of bacterial infections. It is highly stable in the presence of beta-lactamase enzymes.. Reference standards of Cefixime API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below

Displaying 46 results for cefixime Impurities
PA 30 86000

Cefixime - API

Cefixime


  • Catalogue No.:PA 30 86000

  • CAS :

    79350-37-1

  • Molecular Formula : C16H15N5O7S2

  • Molecular Weight : 453.45

PA 30 86510

N,O-Bis(trimethylsilyl)acetamide

N,O-Bis(trimethylsilyl)acetamide


  • Catalogue No.:PA 30 86510

  • CAS :

    10416-59-8

  • Molecular Formula : C8H21NOSi2

  • Molecular Weight : 203.43

PA 30 86520

N-Acetyl Cefixime

N-Acetyl Cefixime


  • Catalogue No.:PA 30 86520

  • CAS :

    130136-31-1

  • Molecular Formula : C18H17N5O8S2

  • Molecular Weight : 495.49

PA 03 24010

Cefixime - Impurity A

2-[[(Z)-2-(2-Aminothiazol-4-yl)-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


  • Catalogue No.:PA 03 24010

  • CAS :

    1614255-90-1

  • Molecular Formula : C16H17N5O8S2

  • Molecular Weight : 471.46

PA 03 24020

Cefixime - Impurity B

2-[[[(Z)-1-(2-Aminothiazol-4-yl)-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


  • Catalogue No.:PA 03 24020

  • CAS :

    1335475-19-8

  • Molecular Formula : C15H17N5O6S2

  • Molecular Weight : 427.46

PA 03 24030

Cefixime - Impurity C

Cefixime 7-epimer


  • Catalogue No.:PA 03 24030

  • CAS :

    108691-83-4

  • Molecular Formula : C16H15N5O7S2

  • Molecular Weight : 453.45

PA 03 24040

Cefixime - Impurity D

Cefixime E-isomer


  • Catalogue No.:PA 03 24040

  • CAS :

    97164-56-2

  • Molecular Formula : C16H15N5O7S2

  • Molecular Weight : 453.45

PA 03 24050

Cefixime - Impurity E

(6R,7R)-7-[[(2Z)-2-(2-Amino-4-thiazolyl)-2-[(carboxymethoxy)imino]acetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid


  • Catalogue No.:PA 03 24050

  • CAS :

    72701-01-0

  • Molecular Formula : C15H15N5O7S2

  • Molecular Weight : 441.44

PA 03 24060

Cefixime - Impurity F

Cefixime Ethyl Ester Sodium Salt


  • Catalogue No.:PA 03 24060

  • CAS :

    NA

  • Molecular Formula : C18H18N5NaO7S2

  • Molecular Weight : 503.48

PA 03 24510

Cefixime Methyl Ester

Cefixime Methyl Ester


  • Catalogue No.:PA 03 24510

  • CAS :

    88621-01-6

  • Molecular Formula : C17H17N5O7S2

  • Molecular Weight : 467.47

PA 03 24520

Cefixime Sulfoxide

Cefixime Sulfoxide


  • Catalogue No.:PA 03 24520

  • CAS :

    1335555-87-7

  • Molecular Formula : C16H15N5O8S2

  • Molecular Weight : 469.45

PA 03 24530

Cefixime Sulfone

Cefixime Sulfone


  • Catalogue No.:PA 03 24530

  • CAS :

    2682217-22-5

  • Molecular Formula : C16H15N5O9S2

  • Molecular Weight : 485.45

PA 03 24540

7-Amino-3-vinyl-3-cephem-4-carboxylic Acid

7-Amino-3-vinyl-3-cephem-4-carboxylic Acid


  • Catalogue No.:PA 03 24540

  • CAS :

    79349-82-9

  • Molecular Formula : C9H10N2O3S

  • Molecular Weight : 226.25

PA 03 24550

(Z)-2-(2-Aminothiazol-4-yl)-2-((2-methoxy-2-oxoethoxy)imino)acetic Acid

(Z)-2-(2-Aminothiazol-4-yl)-2-((2-methoxy-2-oxoethoxy)imino)acetic Acid


  • Catalogue No.:PA 03 24550

  • CAS :

    80544-17-8

  • Molecular Formula : C8H9N3O5S

  • Molecular Weight : 259.24

PA 03 24560

(6R,7R)-7-((E)-2-(2-((E)-2-(2-Aminothiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)thiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid

(6R,7R)-7-((E)-2-(2-((E)-2-(2-Aminothiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)thiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid


  • Catalogue No.:PA 03 24560

  • CAS :

    NA

  • Molecular Formula : C23H20N8O11S3

  • Molecular Weight : 680.65

PA STI 018390

Cefixime-13C,15N2

Cefixime-13C,15N2


  • Catalogue No.:PA STI 018390

  • CAS :

    NA

  • Molecular Formula : C1513CH15N315N2O7S2

  • Molecular Weight : 456.43

PA USP1097658

Cefixime (1097658)

Cefixime (1097658)


  • Catalogue No.:PA USP1097658

  • CAS :

    125110-14-7

  • Molecular Formula : NA

  • Molecular Weight : NA

PA EPC0684000

Cefixime (C0684000)

Cefixime (C0684000)


  • Catalogue No.:PA EPC0684000

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PAI 03 004010

(E)-2-(2-aminothiazol-4-yl)-2-((2-methoxy-2-oxoethoxy)imino)acetic Acid

(E)-2-(2-aminothiazol-4-yl)-2-((2-methoxy-2-oxoethoxy)imino)acetic Acid


  • Catalogue No.:PAI 03 004010

  • CAS :

    NA

  • Molecular Formula : C8H9N3O5S

  • Molecular Weight : 259.24

PAI 03 004020

Methyl (E)-2-(((1-(2-aminothiazol-4-yl)-2-(benzo[d]thiazol-2-ylthio)-2-oxoethylidene)amino)oxy)acetate

Methyl (E)-2-(((1-(2-aminothiazol-4-yl)-2-(benzo[d]thiazol-2-ylthio)-2-oxoethylidene)amino)oxy)acetate


  • Catalogue No.:PAI 03 004020

  • CAS :

    NA

  • Molecular Formula : C15H12N4O4S3

  • Molecular Weight : 408.47

PAI 03 004030

(6R,7R)-7-((E)-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

(6R,7R)-7-((E)-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


  • Catalogue No.:PAI 03 004030

  • CAS :

    NA

  • Molecular Formula : C17H17N5O7S2

  • Molecular Weight : 467.47

PAI 03 004050

(6R,7R)-7-(2-(2-Aminothiazol-4-yl)-2-((2-methoxy-2-oxoethoxy)imino)acetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid

(6R,7R)-7-(2-(2-Aminothiazol-4-yl)-2-((2-methoxy-2-oxoethoxy)imino)acetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid


  • Catalogue No.:PAI 03 004050

  • CAS :

    NA

  • Molecular Formula : C16H17N5O7S2

  • Molecular Weight : 455.47

PA 30 86540

(6R,7R)-7-Amino-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Diphenylmethyl Ester Hydrochloride

(6R,7R)-7-Amino-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Diphenylmethyl Ester Hydrochloride


  • Catalogue No.:PA 30 86540

  • CAS :

    79349-67-0

  • Molecular Formula : C22H21ClN2O3S

  • Molecular Weight : 428.93

PA 30 86530

Cefixime tert-Butyl Ester

Cefixime tert-Butyl Ester


  • Catalogue No.:PA 30 86530

  • CAS :

    79368-92-6

  • Molecular Formula : C20H23N5O7S2

  • Molecular Weight : 509.55

PA IPIPRS 36 14

Cefixime (IPRS/36/14)-from IPC


  • Catalogue No.:PA IPIPRS 36 14

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

PA 03 24061

Cefixime - Impurity F (Freebase)

Cefixime Ethyl Ester


  • Catalogue No.:PA 03 24061

  • CAS :

    79368-95-9

  • Molecular Formula : C18H19N5O7S2

  • Molecular Weight : 481.50

PA 03 24570

(6R,7R)-7-((Z)-2-(2-((Z)-2-(2-Aminothiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)thiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid

(6R,7R)-7-((Z)-2-(2-((Z)-2-(2-Aminothiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)thiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid


  • Catalogue No.:PA 03 24570

  • CAS :

    NA

  • Molecular Formula : C23H20N8O11S3

  • Molecular Weight : 680.64

PA 03 24580

2-((((Z)-1-(2-Aminothiazol-4-yl)-2-(((5aR,6R)-3-methyl-1,7-dioxo-1,4,5a,6-tetrahydro-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazin-6-yl)amino)-2-oxoethylidene)amino)oxy)acetic Acid

2-((((Z)-1-(2-Aminothiazol-4-yl)-2-(((5aR,6R)-3-methyl-1,7-dioxo-1,4,5a,6-tetrahydro-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazin-6-yl)amino)-2-oxoethylidene)amino)oxy)acetic Acid


  • Catalogue No.:PA 03 24580

  • CAS :

    NA

  • Molecular Formula : C16H15N5O7S2

  • Molecular Weight : 453.44

PA 03 24590

(2R)-2-((Z)-2-(2-Aminothiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-2-((2R)-5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl)acetic Acid

(2R)-2-((Z)-2-(2-Aminothiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-2-((2R)-5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl)acetic Acid


  • Catalogue No.:PA 03 24590

  • CAS :

    NA

  • Molecular Formula : C16H17N5O8S2

  • Molecular Weight : 471.46

PA 30 86550

(2R,Z)-2-((Z)-4-(2-Aminothiazol-4-yl)-1-carboxy-3,8-dioxo-6,9-dioxa-2,5-diazaundec-4-en-1-yl)-5-ethylidene-5,6-dihydro-2H-1,3-thiazine-4-carboxylic Acid

(2R,Z)-2-((Z)-4-(2-Aminothiazol-4-yl)-1-carboxy-3,8-dioxo-6,9-dioxa-2,5-diazaundec-4-en-1-yl)-5-ethylidene-5,6-dihydro-2H-1,3-thiazine-4-carboxylic Acid


  • Catalogue No.:PA 30 86550

  • CAS :

    NA

  • Molecular Formula : C18H21N5O8S2

  • Molecular Weight : 499.51

PA 30 86560

(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

(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


  • Catalogue No.:PA 30 86560

  • CAS :

    NA

  • Molecular Formula : C15H17N5O6S2

  • Molecular Weight : 427.45

PA 30 86570

(Z)-5-(2-Aminothiazol-4-yl)-2-(5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl)-4,9-dioxo-7,10-dioxa-3,6-diazadodec-5-enoic Acid

(Z)-5-(2-Aminothiazol-4-yl)-2-(5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl)-4,9-dioxo-7,10-dioxa-3,6-diazadodec-5-enoic Acid


  • Catalogue No.:PA 30 86570

  • CAS :

    NA

  • Molecular Formula : C18H21N5O8S2

  • Molecular Weight : 499.51

PA 30 86580

(Z)-7-(2-Aminothiazol-4-yl)-10-(5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl)-3,8-dioxo-2,5-dioxa-6,9-diazaundec-6-en-11-oic Acid

(Z)-7-(2-Aminothiazol-4-yl)-10-(5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl)-3,8-dioxo-2,5-dioxa-6,9-diazaundec-6-en-11-oic Acid


  • Catalogue No.:PA 30 86580

  • CAS :

    NA

  • Molecular Formula : C17H19N5O8S2

  • Molecular Weight : 485.49

PA 30 86590

Methyl (Z)-2-(((1-(2-aminothiazol-4-yl)-2-(((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)acetate

Methyl (Z)-2-(((1-(2-aminothiazol-4-yl)-2-(((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)acetate


  • Catalogue No.:PA 30 86590

  • CAS :

    NA

  • Molecular Formula : C16H19N5O6S2

  • Molecular Weight : 441.48

PA 30 86600

2-((((E)-1-(2-Aminothiazol-4-yl)-2-((((2R)-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

2-((((E)-1-(2-Aminothiazol-4-yl)-2-((((2R)-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


  • Catalogue No.:PA 30 86600

  • CAS :

    NA

  • Molecular Formula : C15H17N5O6S2

  • Molecular Weight : 427.45

PA 30 0861000

2-((((Z)-1-(2-Aminothiazol-4-yl)-2-(((6R,7R)-2-(tert-butoxycarbonyl)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-en-7-yl)amino)-2-oxoethylidene)amino)oxy)acetic Acid

2-((((Z)-1-(2-Aminothiazol-4-yl)-2-(((6R,7R)-2-(tert-butoxycarbonyl)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-en-7-yl)amino)-2-oxoethylidene)amino)oxy)acetic Acid


  • Catalogue No.:PA 30 0861000

  • CAS :

    NA

  • Molecular Formula : C20H23N5O7S2

  • Molecular Weight : 509.55

PAI 03 004051

Tert-butyl (4-((Z)-1-(hydroxyimino)-2-((((2R,5R)-5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl)methyl)amino)-2-oxoethyl)thiazol-2-yl)carbamate

Tert-butyl (4-((Z)-1-(hydroxyimino)-2-((((2R,5R)-5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl)methyl)amino)-2-oxoethyl)thiazol-2-yl)carbamate


  • Catalogue No.:PAI 03 004051

  • CAS :

    NA

  • Molecular Formula : C18H23N5O6S2

  • Molecular Weight : 469.53

PAI 03 004052

2-((((Z)-1-(2-((Tert-butoxycarbonyl)amino)thiazol-4-yl)-2-((((2R,5R)-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

2-((((Z)-1-(2-((Tert-butoxycarbonyl)amino)thiazol-4-yl)-2-((((2R,5R)-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


  • Catalogue No.:PAI 03 004052

  • CAS :

    NA

  • Molecular Formula : C20H25N5O8S2

  • Molecular Weight : 527.57

PAI 03 004053

Ethyl (E)-4-chloro-2-((2-ethoxy-2-oxoethoxy)imino)-3-oxobutanoate

Ethyl (E)-4-chloro-2-((2-ethoxy-2-oxoethoxy)imino)-3-oxobutanoate


  • Catalogue No.:PAI 03 004053

  • CAS :

    NA

  • Molecular Formula : C10H14ClNO6

  • Molecular Weight : 279.67

PAI 03 004054

Ethyl (E)-2-((2-ethoxy-2-oxoethoxy)imino)-2-(2-methylthiazol-4-yl)acetate

Ethyl (E)-2-((2-ethoxy-2-oxoethoxy)imino)-2-(2-methylthiazol-4-yl)acetate


  • Catalogue No.:PAI 03 004054

  • CAS :

    NA

  • Molecular Formula : C12H16N2O5S

  • Molecular Weight : 300.33

PA 30 0860031

Cefixime - Impurity C (Disodium Salt)

Cefixime 7-epimer


  • Catalogue No.:PA 30 0860031

  • CAS :

    124506-28-1

  • Molecular Formula : C16H13N5Na2O7S2

  • Molecular Weight : 497.41

PA IPRS 59 19

Cefixime (IPRS/59/19) -from IPC

Cefixime (IPRS/59/19) -from IPC


  • Catalogue No.:PA IPRS 59 19

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA STI 089241

[13C3, 15N2]-Cefixime

[13C3, 15N2]-Cefixime


  • Catalogue No.:PA STI 089241

  • CAS :

    NA

  • Molecular Formula : C1313C3H15N315N2O7S2

  • Molecular Weight : 458.41

PA 30 0861001

(E)-2-(((1-(2-Aminothiazol-4-yl)-2-((3-Methyl-1,7-dioxo-1,4,5a,6-tetrahydro-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazin-6-yl)Amino)-2-Oxoethylidene)Amino)oxy)acetic Acid

(E)-2-(((1-(2-Aminothiazol-4-yl)-2-((3-Methyl-1,7-dioxo-1,4,5a,6-tetrahydro-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazin-6-yl)Amino)-2-Oxoethylidene)Amino)oxy)acetic Acid


  • Catalogue No.:PA 30 0861001

  • CAS :

    108636-27-7

  • Molecular Formula : C16H15N5O7S2

  • Molecular Weight : 453.44

PA 30 0861002

2-((((Z)-1-(2-Aminothiazol-4-yl)-2-(((6aR,7R)-1,8-Dioxo-1,3,4,5,6a,7-Hexahydro-8H-azeto[2,1-b]pyrano[3,4-d][1,3]thiazin-7-yl)Amino)-2-Oxoethylidene)Amino)oxy)acetic Acid

2-((((Z)-1-(2-Aminothiazol-4-yl)-2-(((6aR,7R)-1,8-Dioxo-1,3,4,5,6a,7-Hexahydro-8H-azeto[2,1-b]pyrano[3,4-d][1,3]thiazin-7-yl)Amino)-2-Oxoethylidene)Amino)oxy)acetic Acid


  • Catalogue No.:PA 30 0861002

  • CAS :

    128012-77-1

  • Molecular Formula : C16H15N5O7S2

  • Molecular Weight : 453.44

PA 30 0861003

7-Amino-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid

7-Amino-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid


  • Catalogue No.:PA 30 0861003

  • CAS :

    1214070-06-0

  • Molecular Formula : C9H10N2O3S

  • Molecular Weight : 226.25