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
Cefixime
Catalogue No.:PA 30 86000
CAS :
Molecular Formula : C16H15N5O7S2
Molecular Weight : 453.45
N,O-Bis(trimethylsilyl)acetamide
Catalogue No.:PA 30 86510
Molecular Formula : C8H21NOSi2
Molecular Weight : 203.43
N-Acetyl Cefixime
Catalogue No.:PA 30 86520
Molecular Formula : C18H17N5O8S2
Molecular Weight : 495.49
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
Molecular Formula : C16H17N5O8S2
Molecular Weight : 471.46
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
Molecular Formula : C15H17N5O6S2
Molecular Weight : 427.46
Cefixime 7-epimer
Catalogue No.:PA 03 24030
Cefixime E-isomer
Catalogue No.:PA 03 24040
(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
Molecular Formula : C15H15N5O7S2
Molecular Weight : 441.44
Cefixime Ethyl Ester Sodium Salt
Catalogue No.:PA 03 24060
Molecular Formula : C18H18N5NaO7S2
Molecular Weight : 503.48
Cefixime Methyl Ester
Catalogue No.:PA 03 24510
Molecular Formula : C17H17N5O7S2
Molecular Weight : 467.47
Cefixime Sulfoxide
Catalogue No.:PA 03 24520
Molecular Formula : C16H15N5O8S2
Molecular Weight : 469.45
Cefixime Sulfone
Catalogue No.:PA 03 24530
Molecular Formula : C16H15N5O9S2
Molecular Weight : 485.45
7-Amino-3-vinyl-3-cephem-4-carboxylic Acid
Catalogue No.:PA 03 24540
Molecular Formula : C9H10N2O3S
Molecular Weight : 226.25
(Z)-2-(2-Aminothiazol-4-yl)-2-((2-methoxy-2-oxoethoxy)imino)acetic Acid
Catalogue No.:PA 03 24550
Molecular Formula : C8H9N3O5S
Molecular Weight : 259.24
(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
Molecular Formula : C23H20N8O11S3
Molecular Weight : 680.65
Cefixime-13C,15N2
Catalogue No.:PA STI 018390
Molecular Formula : C1513CH15N315N2O7S2
Molecular Weight : 456.43
Cefixime (1097658)
Catalogue No.:PA USP1097658
Molecular Formula : NA
Molecular Weight : NA
Cefixime (C0684000)
Catalogue No.:PA EPC0684000
(E)-2-(2-aminothiazol-4-yl)-2-((2-methoxy-2-oxoethoxy)imino)acetic Acid
Catalogue No.:PAI 03 004010
Methyl (E)-2-(((1-(2-aminothiazol-4-yl)-2-(benzo[d]thiazol-2-ylthio)-2-oxoethylidene)amino)oxy)acetate
Catalogue No.:PAI 03 004020
Molecular Formula : C15H12N4O4S3
Molecular Weight : 408.47
(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
(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
Molecular Formula : C16H17N5O7S2
Molecular Weight : 455.47
(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
Molecular Formula : C22H21ClN2O3S
Molecular Weight : 428.93
Cefixime tert-Butyl Ester
Catalogue No.:PA 30 86530
Molecular Formula : C20H23N5O7S2
Molecular Weight : 509.55
Catalogue No.:PA IPIPRS 36 14
Molecular Formula :
Cefixime Ethyl Ester
Catalogue No.:PA 03 24061
Molecular Formula : C18H19N5O7S2
Molecular Weight : 481.50
(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
Molecular Weight : 680.64
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
Molecular Weight : 453.44
(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
(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
Molecular Formula : C18H21N5O8S2
Molecular Weight : 499.51
(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
Molecular Weight : 427.45
(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
(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
Molecular Formula : C17H19N5O8S2
Molecular Weight : 485.49
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
Molecular Formula : C16H19N5O6S2
Molecular Weight : 441.48
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
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
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
Molecular Formula : C18H23N5O6S2
Molecular Weight : 469.53
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
Molecular Formula : C20H25N5O8S2
Molecular Weight : 527.57
Ethyl (E)-4-chloro-2-((2-ethoxy-2-oxoethoxy)imino)-3-oxobutanoate
Catalogue No.:PAI 03 004053
Molecular Formula : C10H14ClNO6
Molecular Weight : 279.67
Ethyl (E)-2-((2-ethoxy-2-oxoethoxy)imino)-2-(2-methylthiazol-4-yl)acetate
Catalogue No.:PAI 03 004054
Molecular Formula : C12H16N2O5S
Molecular Weight : 300.33
Catalogue No.:PA 30 0860031
Molecular Formula : C16H13N5Na2O7S2
Molecular Weight : 497.41
Cefixime (IPRS/59/19) -from IPC
Catalogue No.:PA IPRS 59 19
[13C3, 15N2]-Cefixime
Catalogue No.:PA STI 089241
Molecular Formula : C1313C3H15N315N2O7S2
Molecular Weight : 458.41
(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
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
7-Amino-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 30 0861003
2-(2-Aminothiazol-4-yl)-2-((2-methoxy-2-oxoethoxy)imino)acetic Acid
Catalogue No.:PA 30 0861004
(Z)-7-(2-((Carboxymethoxy)imino)-2-(2-((3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)amino)thiazol-4-yl)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 30 0861005
Molecular Formula : C22H25N5O12S2
Molecular Weight : 615.59
Methyl (Z)-2-(((1-(2-aminothiazol-4-yl)-2-(benzo[d]thiazol-2-ylthio)-2-oxoethylidene)amino)oxy)acetate
Catalogue No.:PA 30 0861006
Ethyl (Z)-2-(((1-(2-aminothiazol-4-yl)-2-(benzo[d]thiazol-2-ylthio)-2-oxoethylidene)amino)oxy)acetate
Catalogue No.:PA 30 0861007
Molecular Formula : C16H14N4O4S3
Molecular Weight : 422.49
Methyl (E)-2-(((1-(2-aminothiazol-4-yl)-2-chloro-2-oxoethylidene)amino)oxy)acetate
Catalogue No.:PAI 03 004055
Molecular Formula : C8H8ClN3O4S
Molecular Weight : 277.68
2-((Z)-2-(2-Aminothiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-2-((2R)-5-methyl-1-nitroso-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl)acetic Acid
Catalogue No.:PA 30 0861008
Molecular Formula : C16H16N6O9S2
Molecular Weight : 500.46
(6R,7R)-7-((Z)-2-((Carboxymethoxy)imino)-2-(2-imino-2,3-dihydrothiazol-4-yl)-N-nitrosoacetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 30 0861009
Molecular Formula : C16H14N6O8S2
Molecular Weight : 482.44
(6R,7R)-7-((Z)-2-((Carboxymethoxy)imino)-2-(2-imino-3-nitroso-2,3-dihydrothiazol-4-yl)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 30 0861010
2-((((Z)-1-(2-Aminothiazol-4-yl)-2-((((2R,5R)-5-methyl-1-nitroso-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 0861011
Molecular Formula : C15H16N6O7S2
Molecular Weight : 456.45
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