Cephalexin is also spelled cephalexin. It can treat a number of bacterial infections including: otitis media, streptococcal pharyngitis, bone and joint infections, pneumonia, cellulitis, and urinary tract infections.. Reference standards of Cephalexin API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below
D-Phenylglycine
Catalogue No.:PA 03 35010
CAS :
Molecular Formula : C8H9NO2
Molecular Weight : 151.16
7-Aminodesacetoxycephalosporanic Acid
Catalogue No.:PA 03 35020
Molecular Formula : C8H10N2O3S
Molecular Weight : 214.24
3-Hydroxy-4-methyl-2(5H)-thiophenone
Catalogue No.:PA 03 35040
Molecular Formula : C5H6O2S
Molecular Weight : 130.16
7-ADCA Pivalamide
Catalogue No.:PA 03 35050
Molecular Formula : C13H18N2O4S
Molecular Weight : 298.36
Delta-2-cephalexin
Catalogue No.:PA 03 35060
Molecular Formula : C16H17N3O4S
Molecular Weight : 347.39
Cephalexin R-Sulfoxide
Catalogue No.:PA 03 35530
Molecular Formula : C16H17N3O5S
Molecular Weight : 363.39
DL-2-Phenylglycine
Catalogue No.:PA 03 35551
Cephalexin
Catalogue No.:PA 56 26000
Cephradine
Catalogue No.:PA 56 0261005
Molecular Formula : C16H19N3O4S
Molecular Weight : 349.41
7-(2-Amino-2-(4-chlorophenyl)acetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 56 26520
Molecular Formula : C16H16ClN3O4S
Molecular Weight : 381.83
D-Phenylglycyl Cephalexin
Catalogue No.:PA 03 35030
Molecular Formula : C24H24N4O5S
Molecular Weight : 480.54
(6R,7R)-7-[[(2R)-2-Amino-2-phenylacetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-[(2r)-2-phenylacetic acid] Carboxamide
Catalogue No.:PA 03 35510
Cephalexin Diketopiperazine
Catalogue No.:PA 03 35520
Cephalexin S-Sulfoxide
Catalogue No.:PA 03 35540
Cephalexin Ethyl Homolog
Catalogue No.:PA 03 35550
Molecular Formula : C17H19N3O4S
Molecular Weight : 361.42
Cephalexin Diketopiperazine Monoacid (Mixture of Diastereomers)
Catalogue No.:PA 03 35570
Molecular Formula : C16H19N3O5S
Molecular Weight : 365.4
α-(Benzoylamino)benzeneacetamide-d10
Catalogue No.:PA STI 010930
Molecular Formula : C15H4D10N2O2
Molecular Weight : 264.35
Cephalexin-d5 Hydrate
Catalogue No.:PA STI 018640
Molecular Formula : C16H14D5N3O5S
Molecular Weight : 370.43
Ethyl Benzoylformate-d5
Catalogue No.:PA STI 038840
Molecular Formula : C10H5D5O3
Molecular Weight : 183.22
D-(-)-2-Phenylglycine Cephalexinate-d5
Catalogue No.:PA STI 073070
Molecular Formula : C24H19D5N4O5S
Molecular Weight : 485.57
D-Phenylglycyl Cephalexin-d5
Catalogue No.:PA STI 073080
2-[N-(D-Phenylglycine-d5)]crotonic Acid Ethyl Ester Potassium Salt
Catalogue No.:PA STI 073100
Molecular Formula : C14H11D5KNO4
Molecular Weight : 306.41
Cephalexin (1099008)
Catalogue No.:PA USP1099008
Molecular Formula : NA
Molecular Weight : NA
Cephalexin Related Compound D (3-Hydroxy-4-methylthiophen-2(5H)-one) (1099041)
Catalogue No.:PA USP1099041
Cephalexin Related Compound F ((6R,7R)-7-[(R)-2-Amino-2-phenylacetamido]-3-methyl-8-oxo-5-thia-1-az (1099063)
Catalogue No.:PA USP1099063
Cephalexin Dimer
Catalogue No.:PA 56 26530
Molecular Formula : C32H32N6O7S2
Molecular Weight : 676.76
Catalogue No.:PA IPIPRS 193 12
Molecular Formula :
Δ-2-7-Aminodesacetoxycephalosporanic Acid
Catalogue No.:PA 56 26540
Cephalexin Diketopiperazine Hydrochloride
Catalogue No.:PA 03 35580
Molecular Formula : C16H18ClN3O4S
Molecular Weight : 383.85
(6R,7R)-7-Amino-3-ethyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PAI 03 029010
Molecular Formula : C9H12N2O3S
Molecular Weight : 228.27
Sodium (R,E)-2-((4-methoxy-4-oxobut-2-en-2-yl)amino)-2-phenylacetate
Catalogue No.:PAI 03 029020
Molecular Formula : C13H14NNaO4
Molecular Weight : 271.25
(6R,7R)-7-((R)-2-Amino-2-phenylacetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PAI 03 029030
Molecular Formula : C17H17N3O4S
Molecular Weight : 359.4
Cefalexin Delactam Dimer
Catalogue No.:PA 56 0261000
Molecular Formula : C32H34N6O8S2
Molecular Weight : 694.78
Sodium (E)-2-((4-ethoxy-4-oxobut-2-en-2-yl)amino)-2-phenylacetate
Catalogue No.:PAI 03 029031
Molecular Formula : C14H16NNaO4
Molecular Weight : 285.27
7-(2-Amino-2-phenylacetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PAI 03 029032
2-(1-Amino-2-(((R)-carboxy(phenyl)methyl)amino)-2-oxoethyl)-5-methyl-3,6-dihydro-2H-1,3-thiazine-4-carboxylic Acid
Catalogue No.:PA 56 0261001
Cephalexin (IPRS/21/16) -from IPC
Catalogue No.:PA IPRS 21 16
Cephalexin sulfoxide
Catalogue No.:PA 56 0261004
L-Cephalexin
Catalogue No.:PA 56 0261003
Cephalexin Open-Ring Impurity
Catalogue No.:PA 56 0261006
tert-Butoxycarbonylcephalexin
Catalogue No.:PAI 03 029033
Molecular Formula : C21H25N3O6S
Molecular Weight : 447.51
(6R,7R)-7-((R)-2-((tert-Butoxycarbonyl)amino)-2-phenylacetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic Acid
Catalogue No.:PAI 03 029034
(6R,7R)-7-((R)-2-((R)-2-((R)-2-Amino-2-phenylacetamido)-2-phenylacetamido)-2-phenylacetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 56 0261007
Molecular Formula : C32H31N5O6S
Molecular Weight : 613.69
Cephalexin Chloro Impurity
Catalogue No.:PA 56 0261008
Cephalosporanic Acid G
Catalogue No.:PA 56 0261009
Molecular Formula : C16H16N2O4S
Molecular Weight : 332.37
delta4-Cephalexin Diketopiperazine
Catalogue No.:PA 56 0261010
Delta-2-cefalexin Dihydrate
Catalogue No.:PA 56 0260061
Molecular Formula : C16H21N3O6S
Molecular Weight : 383.42
(6R,7R)-7-Amino-3-methoxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Catalogue No.:PA 56 0261011
Molecular Formula : C8H10N2O4S
Molecular Weight : 230.24
2-(1-Amino-2-((carboxy(phenyl)methyl)amino)-2-oxoethyl)-5-methyl-3-nitroso-3,6-dihydro-2H-1,3-thiazine-4-carboxylic Acid
Catalogue No.:PA 56 0261012
Molecular Formula : C16H18N4O6S
Molecular Weight : 394.4
2-(3,6-Dioxo-5-phenylpiperazin-2-yl)-5-methyl-3-nitroso-3,6-dihydro-2H-1,3-thiazine-4-carboxylic Acid
Catalogue No.:PA 56 0261013
Molecular Formula : C16H16N4O5S
Molecular Weight : 376.39
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