Pharmaceutical Reference Standards / Impurity Standards

Cephalexin Reference Standard
Cephalexin Reference Standard
  • CAT. No.C220000
  • CAS. No.15686-71-2
  • Mol. F.C16H17N3O4S
  • Mol. W.347.39 g/mol
  • Stock Status:Instock
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Cephalexin Monohydrate
Cephalexin Monohydrate
  • CAT. No.C220000A
  • CAS. No.23325-78-2
  • Mol. F.C16H19N3O5S
  • Mol. W.365.40 g/mol
  • Stock Status:Instock
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Cefalexin EP Impurity A
Cefalexin EP Impurity A
  • CAT. No.C220001
  • CAS. No.875-74-1
  • Mol. F.C8H9NO2
  • Mol. W.151.16 g/mol
  • Stock Status:Instock
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Cefalexin EP Impurity B
Cefalexin EP Impurity B
  • CAT. No.C220002
  • CAS. No.22252-43-3
  • Mol. F.C8H10N2O3S
  • Mol. W.214.24 g/mol
  • Stock Status:Instock
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Cefalexin EP Impurity D
Cefalexin EP Impurity D
  • CAT. No.C220003
  • CAS. No.34876-35-2
  • Mol. F.C5H6O2S
  • Mol. W.130.16 g/mol
  • Stock Status:Instock
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Cefalexin EP Impurity F Trifluoroacetate
Cefalexin EP Impurity F Trifluoroacetate
  • CAT. No.C220004
  • CAS. No.79750-46-2 (free base)
  • Mol. F.C18H18F3N3O6S
  • Mol. W.461.41 g/mol
  • Stock Status:Limited Stock
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Cefalexin EP Impurity C
Cefalexin EP Impurity C
  • CAT. No.C220005
  • CAS. No.72528-40-6
  • Mol. F.C24H24N4O5S
  • Mol. W.480.54 g/mol
  • Stock Status:Under Synthesis
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Cefalexin EP Impurity E
Cefalexin EP Impurity E
  • CAT. No.C220006
  • CAS. No.146794-70-9
  • Mol. F.C13H18N2O4S
  • Mol. W.298.36 g/mol
  • Stock Status:Instock
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Cephalexin Sulfoxide
Cephalexin Sulfoxide
  • CAT. No.C220007
  • CAS. No.56193-21-6
  • Mol. F.C16H17N3O5S
  • Mol. W.363.39g/mol
  • Stock Status:Instock
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Cephalexine RC K
Cephalexine RC K
  • CAT. No.C220008
  • CAS. No.NA
  • Mol. F.C24H24N4O5S.CH2O2
  • Mol. W.480.5g/mol
  • Stock Status:Limited Stock
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Cephalexine RC D
Cephalexine RC D
  • CAT. No.C220009
  • CAS. No.110-02-1
  • Mol. F.C4H4S.
  • Mol. W.84.14g/mol
  • Stock Status:Custom Synthesis
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Delta-2-Cefalexin
Delta-2-Cefalexin
  • CAT. No.C220010
  • CAS. No.79750-46-2
  • Mol. F.C16H17N3O4S
  • Mol. W.347.39 g/mol
  • Stock Status:Instock
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L-Cephalexin
L-Cephalexin
  • CAT. No.C220011
  • CAS. No.34632-04-7
  • Mol. F.C16H17N3O4S
  • Mol. W.347.39 g/mol
  • Stock Status:Custom Synthesis
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D-Phenylglycinamide
D-Phenylglycinamide
  • CAT. No.C220013
  • CAS. No.6485-67-2
  • Mol. F.C8H10N2O
  • Mol. W.150.18 g/mol
  • Stock Status:Instock
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Cephalexin Diketopiperazine Hydrochloride
Cephalexin Diketopiperazine Hydrochloride
  • CAT. No.C220014
  • CAS. No.NA
  • Mol. F.C16H18ClN3O4S
  • Mol. W.383.85 g/mol
  • Stock Status:Custom Synthesis
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Cefalexin Diketopiperazine
Cefalexin Diketopiperazine
  • CAT. No.C220014A
  • CAS. No.59865-11-1
  • Mol. F.C16H17N3O4S
  • Mol. W.347.39 g/mol
  • Stock Status:Custom Synthesis
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Cephalexin R-Sulfoxide Hydrochloride
Cephalexin R-Sulfoxide Hydrochloride
  • CAT. No.C220015
  • CAS. No.FreeAcid:52210-38-5
  • Mol. F.C16H17N3O5S.HCl
  • Mol. W.399.85 g/mol
  • Stock Status:Custom Synthesis
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Cephalexin S-Sulfoxide
Cephalexin S-Sulfoxide
  • CAT. No.C220015A
  • CAS. No.74708-55-7
  • Mol. F.C16H17N3O5S
  • Mol. W.363.39 g/mol
  • Stock Status:Custom Synthesis
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Chloro Cephalexin
Chloro Cephalexin
  • CAT. No.C220016
  • CAS. No.22039-59-4
  • Mol. F.C16H16ClN3O4S
  • Mol. W.381.83 g/mol
  • Stock Status:Custom Synthesis
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3-Hydroxy-4-methyl-2(5H)-thiophenone
3-Hydroxy-4-methyl-2(5H)-thiophenone
  • CAT. No.C220018
  • CAS. No.34876-35-2
  • Mol. F.C5H6O2S
  • Mol. W.130.16 g/mol
  • Stock Status:Custom Synthesis
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Cephalexin Diketopiperazine Monoacid
Cephalexin Diketopiperazine Monoacid
  • CAT. No.C220019
  • CAS. No.1323247-65-9
  • Mol. F.C16H19N3O5S
  • Mol. W.365.40 g/mol
  • Stock Status:Custom Synthesis
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(E)-3-(hydroxy methylene)-6-phenylpiperazine-2,5-dione
(E)-3-(hydroxy methylene)-6-phenylpiperazine-2,5-dione
  • CAT. No.C220020
  • CAS. No.NA
  • Mol. F.C11H10N2O3
  • Mol. W.218.21 g/mol
  • Stock Status:Instock
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Delta-2-Cephalexin triethylamine salt
Delta-2-Cephalexin triethylamine salt
  • CAT. No.C220021
  • CAS. No.79750-46-2(Base)
  • Mol. F.C22H32N4O4S
  • Mol. W.448.58 g/mol
  • Stock Status:Custom Synthesis
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Cefalexin Impurity 5
Cefalexin Impurity 5
  • CAT. No.C220022
  • CAS. No.NA
  • Mol. F.C32H31N5O6S
  • Mol. W.613.68 g/mol
  • Stock Status:Custom Synthesis
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Cefalexin Amide Impurity
Cefalexin Amide Impurity
  • CAT. No.C220023
  • CAS. No.NA
  • Mol. F.C16H18N4O3S
  • Mol. W.346.40 g/mol
  • Stock Status:Custom Synthesis
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Cefalexin Impurity 6
Cefalexin Impurity 6
  • CAT. No.C220024
  • CAS. No.27255-72-7
  • Mol. F.C16H16N2O4S
  • Mol. W.332.40 g/mol
  • Stock Status:Custom Synthesis
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Cefalexin Diketopiperazine Delta-3 Isomer
Cefalexin Diketopiperazine Delta-3 Isomer
  • CAT. No.C220025
  • CAS. No.65870-52-2
  • Mol. F.C16H17N3O4S
  • Mol. W.347.39 g/mol
  • Stock Status:Custom Synthesis
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Isotope Labelled Compounds

Cephalexin-D5 Monohydrate
Cephalexin-D5 Monohydrate
  • CAT. No.C220012A
  • CAS. No.NA
  • Mol. F.C16H14D5N3O5S
  • Mol. W.370.43 g/mol
  • Stock Status:Instock
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