Cefalexin Related Products

SynZeal is a leading innovator in pharmaceutical reference standards. We supply high-quality Reference Standards of Cefalexin, pharmacopeial and non-pharmacopeial Cefalexin impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Cefalexin impurities reference standards are useful in pharmaceutical research. They are useful in product development, ANDA and DMF filing, quality control (QC), method validation, and stability studies. It is also useful in the identification of unknown impurities and the assessment of genotoxic potential.

Cefalexin-related products are thoroughly characterized. Cefalexin products are supplied with detailed COA & analytical data meeting regulatory compliance. We can also provide EP/USP traceable standards based on your requirements. The supplied products are re-tested at regular intervals.

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(RS)-2-Phenylglycine

• SZ CAT No: SZ-C018024

• CAS No:

  2835-06-5

• Mol.F.: C8H9NO2
• Mol.Wt.: 151.2
• Inv. Status: In Stock

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Cefalexin

• SZ CAT No: SZ-C018013

• CAS No:

  15686-71-2

• Mol.F.: C16H17N3O4S
• Mol.Wt.: 347.4
• Inv. Status: In Stock
• Rel. CAS No: 23325-78-2 (hydrate)

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Cefalexin EP Impurity A 

• SZ CAT No: SZ-C018002

• CAS No:

  875-74-1

• Mol.F.: C8H9NO2 
• Mol.Wt.: 151.2
• Inv. Status: In Stock
• Rel. CAS No: 25705-52-6 (HCl salt) ; 56337-83-8 (Na salt) ; 37661-32-8 (K salt) ; 91224-38-3 (Sulfate salt)
• Rel. CAT No: SZ-A026012 , SZ-C067002 ,

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Cefalexin EP Impurity B 

• SZ CAT No: SZ-C018003

• CAS No:

  22252-43-3

• Mol.F.: C8H10N2O3S 
• Mol.Wt.: 214.3
• Inv. Status: In Stock
• Rel. CAS No: 111696-41-4 (HCl salt) ; 56871-82-0 (Na salt)
• Rel. CAT No: SZ-C061003 , SZ-C184002 ,

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Cefalexin EP Impurity C

• SZ CAT No: SZ-C018004

• CAS No:

  72528-40-6

• Mol.F.: C24H24N4O5S 
• Mol.Wt.: 480.5
• Inv. Status: In Stock

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Cefalexin EP Impurity D

• SZ CAT No: SZ-C018005

• CAS No:

  34876-35-2

• Mol.F.: C5H6O2S 
• Mol.Wt.: 130.2
• Inv. Status: In Stock
• Rel. CAT No: SZ-C061008 , SZ-C184005 ,

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Cefalexin EP Impurity F

• SZ CAT No: SZ-C018007

• CAS No:

  79750-46-2

• Mol.F.: C16H17N3O4S 
• Mol.Wt.: 347.4
• Inv. Status: In Stock

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Cefalexin Impurity 6

• SZ CAT No: SZ-C018028

• CAS No:

  27255-72-7

• Mol.F.: C16H16N2O4S
• Mol.Wt.: 332.4
• Inv. Status: In Stock
• Rel. CAS No: 39647-23-9 (sodium salt) ; 34708-38-8 (potassium salt)

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Cefalexin Monohydrate

• SZ 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)

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Cefalexin R-Sulfoxide

• SZ CAT No: SZ-C018020

• CAS No:

  52210-38-5

• Mol.F.: C16H17N3O5S
• Mol.Wt.: 363.4
• Inv. Status: In Stock

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Cefalexin S-Sulfoxide

• SZ CAT No: SZ-C018011

• CAS No:

  74708-55-7

• Mol.F.: C16H17N3O5S
• Mol.Wt.: 363.4
• Inv. Status: In Stock

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Delta-4-Cephalexin Diketopiperazine

• SZ CAT No: SZ-C018021

• CAS No:

  65870-52-2

• Mol.F.: C16H17N3O4S
• Mol.Wt.: 347.4
• Inv. Status: In Stock
• Rel. CAS No: 62673-90-9 (sodium salt)

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Cefalexin Amide Impurity

• SZ CAT No: SZ-C018026

• CAS No:

  NA

• Mol.F.: C16H18N4O3S
• Mol.Wt.: 346.4
• Inv. Status: Synthesis on demand

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Cefalexin Diketo Piperazine (Mixture of isomers)

• SZ CAT No: SZ-C018035

• CAS No:

  NA

• Mol.F.: C16H17N3O4S
• Mol.Wt.: 347.4
• Inv. Status: Synthesis on demand

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Cefalexin Diketopiperazine Monoacid

• SZ CAT No: SZ-C018023

• CAS No:

  1323247-65-9

• Mol.F.: C16H19N3O5S
• Mol.Wt.: 365.4
• Inv. Status: Synthesis on demand

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Cefalexin EP Impurity A (S-Isomer)

• SZ CAT No: SZ-C018030

• CAS No:

  2935-35-5

• Mol.F.: C8H9NO2
• Mol.Wt.: 151.2
• Inv. Status: Synthesis on demand

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Cefalexin EP Impurity E

• SZ CAT No: SZ-C018006

• CAS No:

  146794-70-9

• Mol.F.: C13H18N2O4S 
• Mol.Wt.: 298.4
• Inv. Status: Synthesis on demand

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Cefalexin Impurity 1

• SZ CAT No: SZ-C018008

• CAS No:

  NA

• Mol.F.: C16H19N3O5S
• Mol.Wt.: 365.4
• Inv. Status: Synthesis on demand

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Cefalexin Impurity 4

• SZ CAT No: SZ-C018012

• CAS No:

  NA

• Mol.F.: C7H12N2OS
• Mol.Wt.: 172.2
• Inv. Status: Synthesis on demand

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Cefalexin Impurity 5

• SZ CAT No: SZ-C018025

• CAS No:

  NA

• Mol.F.: C32H31N5O6S
• Mol.Wt.: 613.7
• Inv. Status: Synthesis on demand

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Cefalexin Impurity 7

• SZ CAT No: SZ-C018033

• CAS No:

  56487-68-4

• Mol.F.: C8H10N2O3S
• Mol.Wt.: 214.2
• Inv. Status: Synthesis on demand

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Cefalexin Open-Ring Impurity

• SZ CAT No: SZ-C018022

• CAS No:

  NA

• Mol.F.: C16H19N3O5S
• Mol.Wt.: 365.4
• Inv. Status: Synthesis on demand

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Cephalexin Chloro Impurity

• SZ CAT No: SZ-C018027

• CAS No:

  22039-59-4

• Mol.F.: C16H16ClN3O4S
• Mol.Wt.: 381.8
• Inv. Status: Synthesis on demand

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Cephalexin Sulfoxide

• SZ CAT No: SZ-C018029

• CAS No:

  56193-21-6

• Mol.F.: C16H17N3O5S
• Mol.Wt.: 363.4
• Inv. Status: Synthesis on demand

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L-Cephalexin

• SZ CAT No: SZ-C018034

• CAS No:

  34632-04-7

• Mol.F.: C16H17N3O4S
• Mol.Wt.: 347.4
• Inv. Status: Synthesis on demand
• Rel. CAS No: 2743427-28-1 (Hydrate)

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N-Nitroso Cefalexin Diketopiperazine Monoacid

• SZ CAT No: SZ-C018031

• CAS No:

  NA

• Mol.F.: C16H18N4O6S
• Mol.Wt.: 394.4
• Inv. Status: Synthesis on demand

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Cefalexin Diketopiperazine

• SZ CAT No: SZ-C018009

• CAS No:

  59865-11-1

• Mol.F.: C16H17N3O4S
• Mol.Wt.: 347.4
• Inv. Status: Under Synthesis

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Cefalexin-d5 Hydrate

• SZ CAT No: SZ-C018D01

• CAS No:

  NA

• Mol.F.: C16H12D5N3O4S : H2O
• Mol.Wt.: 352.4 : 18.0
• Inv. Status: Synthesis on demand

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N-Nitroso Cefalexin Diketopiperazine

• SZ CAT No: SZ-C018032

• CAS No:

  NA

• Mol.F.: C16H16N4O5S
• Mol.Wt.: 376.4
• Inv. Status: Synthesis on demand

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N-Nitroso Cefalexin Diketopiperazine Monoacid

• SZ CAT No: SZ-C018031

• CAS No:

  NA

• Mol.F.: C16H18N4O6S
• Mol.Wt.: 394.4
• Inv. Status: Synthesis on demand