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Cefalexin EP Impurity A Sulfate salt

Picture of Cefalexin EP Impurity A Sulfate salt
SZ CAT No SZ-C018017
CAS No 91224-38-3
Mol.F. C8H9NO2 : 1/2(H2SO4)
Mol.Wt. 151.2 : 1/2(98.1)
Inv. Status Custom Synthesis
Same As SZ-A026038, SZ-C067014,
Rel. CAS No 25705-52-6 (HCl salt) ; 56337-83-8 (Na salt) ; 37661-32-8 (K salt) ; 875-74-1 (free base)


Chemical Name: (2R)-2-Amino-2-phenylacetic acid Sulfate salt (as per EP)

Synonym: Cefaclor EP Impurity A ; D-Phenylglycine

Multidimensional evaluation of impurity profiles for generic cephalexin and cefaclor antibiotics
B.A. Olsen*, S.W. Baertschi and R.M. Riggin
Journal of Chromatography, 648 (1993) 165-173
 
Chemistry of Cephalosporin Antibiotics. XIII. Ilesac-etoxycephalosporins. The Synthesis of Cephalexin' and Soine Analogs
Charles W. Ryan, R. L. Simon, and Earle M. Van Heyningen
J. Med. Chem. 1969, 12, 2, 310–313
 
Stress Studies and Identification of Degradation Products of Cephalexin Using LC–PDA and LC–MS/MS
V. T. Gawande, K. G. Bothara & A. M. Marathe
Chromatographia volume 80, pages1545–1552(2017)

Pharmaceutical Reference Standards

Cefalexin Monohydrate

Picture of Cefalexin Monohydrate
CAT No: SZ-C018001
CAS No: 23325-78-2
Mol.F. : C16H17N3O4S : H2O
Mol.Wt. : 347.4 : 18.0
Inv. Status: In Stock
Rel. CAS No : 15686-71-2 (free base)
SZ-C018001
CAS No:23325-78-2
Mol.F.: C16H17N3O4S : H2O
Mol.Wt.: 347.4 : 18.0
Inv. Status: In Stock
Rel. CAS No : 15686-71-2 (free base)

Cefalexin EP Impurity A 

Picture of Cefalexin EP Impurity A 
CAT No: SZ-C018002
CAS No: 875-74-1
Mol.F. : C8H9NO2
Mol.Wt. : 151.2
Inv. Status: Out of Stock
Same As : SZ-A026012, SZ-C067002,
Rel. CAS No : 25705-52-6 (HCl salt) ; 56337-83-8 (Na salt) ; 37661-32-8 (K salt) ; 91224-38-3 (Sulfate salt)
SZ-C018002
CAS No:875-74-1
Mol.F.: C8H9NO2 
Mol.Wt.: 151.2
Inv. Status: Out of Stock
Same As : SZ-A026012, SZ-C067002,
Rel. CAS No : 25705-52-6 (HCl salt) ; 56337-83-8 (Na salt) ; 37661-32-8 (K salt) ; 91224-38-3 (Sulfate salt)

Cefalexin EP Impurity B 

Picture of Cefalexin EP Impurity B 
CAT No: SZ-C018003
CAS No: 22252-43-3
Mol.F. : C8H10N2O3S
Mol.Wt. : 214.3
Inv. Status: Custom Synthesis
Same As : SZ-C061003,
Rel. CAS No : 111696-41-4 (HCl salt) ; 56871-82-0 (Na salt)
SZ-C018003
CAS No:22252-43-3
Mol.F.: C8H10N2O3S 
Mol.Wt.: 214.3
Inv. Status: Custom Synthesis
Same As : SZ-C061003,
Rel. CAS No : 111696-41-4 (HCl salt) ; 56871-82-0 (Na salt)

Cefalexin EP Impurity C

Picture of Cefalexin EP Impurity C
CAT No: SZ-C018004
CAS No: 72528-40-6
Mol.F. : C24H24N4O5S
Mol.Wt. : 480.5
Inv. Status: In Stock
SZ-C018004
CAS No:72528-40-6
Mol.F.: C24H24N4O5S 
Mol.Wt.: 480.5
Inv. Status: In Stock

Cefalexin EP Impurity D

Picture of Cefalexin EP Impurity D
CAT No: SZ-C018005
CAS No: 34876-35-2
Mol.F. : C5H6O2S
Mol.Wt. : 130.2
Inv. Status: Out of Stock
Same As : SZ-C061008,
SZ-C018005
CAS No:34876-35-2
Mol.F.: C5H6O2S 
Mol.Wt.: 130.2
Inv. Status: Out of Stock
Same As : SZ-C061008,

Cefalexin EP Impurity E

Picture of Cefalexin EP Impurity E
CAT No: SZ-C018006
CAS No: 146794-70-9
Mol.F. : C13H18N2O4S
Mol.Wt. : 298.4
Inv. Status: Custom Synthesis
SZ-C018006
CAS No:146794-70-9
Mol.F.: C13H18N2O4S 
Mol.Wt.: 298.4
Inv. Status: Custom Synthesis

Cefalexin EP Impurity F

Picture of Cefalexin EP Impurity F
CAT No: SZ-C018007
CAS No: NA
Mol.F. : C16H17N3O4S
Mol.Wt. : 347.4
Inv. Status: Limited Stock
SZ-C018007
CAS No:NA
Mol.F.: C16H17N3O4S 
Mol.Wt.: 347.4
Inv. Status: Limited Stock

Cefalexin Impurity 1

Picture of Cefalexin Impurity 1
CAT No: SZ-C018008
CAS No: NA
Mol.F. : C16H19N3O5S
Mol.Wt. : 365.4
Inv. Status: Under Synthesis
SZ-C018008
CAS No:NA
Mol.F.: C16H19N3O5S
Mol.Wt.: 365.4
Inv. Status: Under Synthesis

Cefalexin Impurity 2

Picture of Cefalexin Impurity 2
CAT No: SZ-C018009
CAS No: 59865-11-1
Mol.F. : C16H17N3O4S
Mol.Wt. : 347.4
Inv. Status: Under Synthesis
SZ-C018009
CAS No:59865-11-1
Mol.F.: C16H17N3O4S
Mol.Wt.: 347.4
Inv. Status: Under Synthesis

Cefalexin Impurity 3

Picture of Cefalexin Impurity 3
CAT No: SZ-C018010
CAS No: NA
Mol.F. : C16H19N3O5S
Mol.Wt. : 365.4
Inv. Status: Custom Synthesis
SZ-C018010
CAS No:NA
Mol.F.: C16H19N3O5S
Mol.Wt.: 365.4
Inv. Status: Custom Synthesis

Cephalexin S-Sulfoxide

Picture of Cephalexin S-Sulfoxide
CAT No: SZ-C018011
CAS No: 74708-55-7
Mol.F. : C16H17N3O5S
Mol.Wt. : 363.4
Inv. Status: In Stock
SZ-C018011
CAS No:74708-55-7
Mol.F.: C16H17N3O5S
Mol.Wt.: 363.4
Inv. Status: In Stock

Cefalexin Impurity 4

Picture of Cefalexin Impurity 4
CAT No: SZ-C018012
CAS No: NA
Mol.F. : C7H12N2OS
Mol.Wt. : 172.2
Inv. Status: Custom Synthesis
SZ-C018012
CAS No:NA
Mol.F.: C7H12N2OS
Mol.Wt.: 172.2
Inv. Status: Custom Synthesis

Cefalexin

Picture of Cefalexin
CAT No: SZ-C018013
CAS No: 15686-71-2
Mol.F. : C16H17N3O4S
Mol.Wt. : 347.4
Inv. Status: In Stock, 3-4 days for Dispatch
Rel. CAS No : 23325-78-2 (hydrate)
SZ-C018013
CAS No:15686-71-2
Mol.F.: C16H17N3O4S
Mol.Wt.: 347.4
Inv. Status: In Stock, 3-4 days for Dispatch
Rel. CAS No : 23325-78-2 (hydrate)

Cefalexin EP Impurity A Hydrochloride 

Picture of Cefalexin EP Impurity A Hydrochloride 
CAT No: SZ-C018014
CAS No: 25705-52-6
Mol.F. : C8H9NO2 : HCl
Mol.Wt. : 151.2 : 36.5
Inv. Status: Custom Synthesis
Same As : SZ-A026039, SZ-C067013,
Rel. CAS No : 875-74-1 (free base) ; 56337-83-8 (Na salt) ; 37661-32-8 (K salt) ; 91224-38-3 (Sulfate salt)
SZ-C018014
CAS No:25705-52-6
Mol.F.: C8H9NO2 : HCl
Mol.Wt.: 151.2 : 36.5
Inv. Status: Custom Synthesis
Same As : SZ-A026039, SZ-C067013,
Rel. CAS No : 875-74-1 (free base) ; 56337-83-8 (Na salt) ; 37661-32-8 (K salt) ; 91224-38-3 (Sulfate salt)

Cefalexin EP Impurity A Sodium salt

Picture of Cefalexin EP Impurity A Sodium salt
CAT No: SZ-C018015
CAS No: 56337-83-8
Mol.F. : C8H9NO2 : Na
Mol.Wt. : 151.2 : 23.0
Inv. Status: Custom Synthesis
Same As : SZ-A026040, SZ-C067011,
Rel. CAS No : 25705-52-6 (HCl salt) ; 875-74-1 (free base) ; 37661-32-8 (K salt) ; 91224-38-3 (Sulfate salt)
SZ-C018015
CAS No:56337-83-8
Mol.F.: C8H9NO2 : Na
Mol.Wt.: 151.2 : 23.0
Inv. Status: Custom Synthesis
Same As : SZ-A026040, SZ-C067011,
Rel. CAS No : 25705-52-6 (HCl salt) ; 875-74-1 (free base) ; 37661-32-8 (K salt) ; 91224-38-3 (Sulfate salt)

Cefalexin EP Impurity A Potassium salt

Picture of Cefalexin EP Impurity A Potassium salt
CAT No: SZ-C018016
CAS No: 37661-32-8
Mol.F. : C8H9NO2 : K
Mol.Wt. : 151.2 : 39.1
Inv. Status: Custom Synthesis
Same As : SZ-A026041, SZ-C067012,
Rel. CAS No : 25705-52-6 (HCl salt) ; 56337-83-8 (Na salt) ; 875-74-1 (free base) ; 91224-38-3 (Sulfate salt)
SZ-C018016
CAS No:37661-32-8
Mol.F.: C8H9NO2 : K
Mol.Wt.: 151.2 : 39.1
Inv. Status: Custom Synthesis
Same As : SZ-A026041, SZ-C067012,
Rel. CAS No : 25705-52-6 (HCl salt) ; 56337-83-8 (Na salt) ; 875-74-1 (free base) ; 91224-38-3 (Sulfate salt)

Cefalexin EP Impurity A Sulfate salt

Picture of Cefalexin EP Impurity A Sulfate salt
CAT No: SZ-C018017
CAS No: 91224-38-3
Mol.F. : C8H9NO2 : 1/2(H2SO4)
Mol.Wt. : 151.2 : 1/2(98.1)
Inv. Status: Custom Synthesis
Same As : SZ-A026038, SZ-C067014,
Rel. CAS No : 25705-52-6 (HCl salt) ; 56337-83-8 (Na salt) ; 37661-32-8 (K salt) ; 875-74-1 (free base)
SZ-C018017
CAS No:91224-38-3
Mol.F.: C8H9NO2 : 1/2(H2SO4)
Mol.Wt.: 151.2 : 1/2(98.1)
Inv. Status: Custom Synthesis
Same As : SZ-A026038, SZ-C067014,
Rel. CAS No : 25705-52-6 (HCl salt) ; 56337-83-8 (Na salt) ; 37661-32-8 (K salt) ; 875-74-1 (free base)

Cefalexin EP Impurity B Hydrochloride

Picture of Cefalexin EP Impurity B Hydrochloride
CAT No: SZ-C018018
CAS No: 111696-41-4
Mol.F. : C8H10N2O3S : HCl
Mol.Wt. : 214.2 : 36.5
Inv. Status: Custom Synthesis
Same As : SZ-C061035,
Rel. CAS No : 22252-43-3 (free base) ; 56871-82-0 (Na salt)
SZ-C018018
CAS No:111696-41-4
Mol.F.: C8H10N2O3S : HCl
Mol.Wt.: 214.2 : 36.5
Inv. Status: Custom Synthesis
Same As : SZ-C061035,
Rel. CAS No : 22252-43-3 (free base) ; 56871-82-0 (Na salt)

Cefalexin EP Impurity B Sodium salt

Picture of Cefalexin EP Impurity B Sodium salt
CAT No: SZ-C018019
CAS No: 56871-82-0
Mol.F. : C8H10N2O3S : Na
Mol.Wt. : 214.2 : 23.0
Inv. Status: Custom Synthesis
Same As : SZ-C061036,
Rel. CAS No : 111696-41-4 (HCl salt) ; 22252-43-3 (free base)
SZ-C018019
CAS No:56871-82-0
Mol.F.: C8H10N2O3S : Na
Mol.Wt.: 214.2 : 23.0
Inv. Status: Custom Synthesis
Same As : SZ-C061036,
Rel. CAS No : 111696-41-4 (HCl salt) ; 22252-43-3 (free base)

Cefalexin R-Sulfoxide

Picture of Cefalexin R-Sulfoxide
CAT No: SZ-C018020
CAS No: 52210-38-5
Mol.F. : C16H17N3O5S
Mol.Wt. : 363.4
Inv. Status: In Stock
SZ-C018020
CAS No:52210-38-5
Mol.F.: C16H17N3O5S
Mol.Wt.: 363.4
Inv. Status: In Stock

Cephalexin Diketopiperazine Sodium Salt

Picture of Cephalexin Diketopiperazine Sodium Salt
CAT No: SZ-C018021
CAS No: 62673-90-9
Mol.F. : C16H16N3O4S : Na
Mol.Wt. : 346.4 : 23.0
Inv. Status: Custom Synthesis
Rel. CAS No : 65870-52-2 (free base)
SZ-C018021
CAS No:62673-90-9
Mol.F.: C16H16N3O4S : Na
Mol.Wt.: 346.4 : 23.0
Inv. Status: Custom Synthesis
Rel. CAS No : 65870-52-2 (free base)