Cefazolin Sodium

Cefazolin Sodium is a first-generation parenteral cephalosporin and the most widely used antibiotic for surgical prophylaxis globally, also used for Gram-positive skin, soft-tissue and urinary tract infections. Simson Pharma's Cefazolin Sodium reference standard and impurities support the high-volume compendial QC this critical surgical-medicine antibiotic demands.

Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) supply high-quality Cefazolin Sodium Reference Standards, pharmacopoeial reference materials, and its related impurities to pharmaceutical manufacturers, CROs, analytical laboratories, universities, and regulatory organizations worldwide. To service the Europe and America market efficiently, Simson Pharma Limited has set up Simson Pharma Global Ltd. in United Kingdom and Simson Pharma Global LLC in USA respectively.

Pharmaceutical Reference Standards / Impurity Standards

Cefazolin Sodium
Cefazolin Sodium
  • CAT. No.C980000
  • CAS. No.27164-46-1
  • Mol. F.C14H13N8O4S3.Na
  • Mol. W.476.49 g/mol
  • Stock Status:Instock
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Cefazolin
Cefazolin
  • CAT. No.C980000A
  • CAS. No.25953-19-9
  • Mol. F.C14H14N8O4S3
  • Mol. W.454.51 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin EP Impurity E
Cefazolin EP Impurity E
  • CAT. No.C980001
  • CAS. No.29490-19-5
  • Mol. F.C3H4N2S2
  • Mol. W.132.21 g/mol
  • Stock Status:Instock
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Cefazolin EP Impurity A
Cefazolin EP Impurity A
  • CAT. No.C980002
  • CAS. No.30246-33-4
  • Mol. F.C11H12N4O3S3
  • Mol. W.344.44 g/mol
  • Stock Status:Instock
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Tetrazolylacetic Acid
Tetrazolylacetic Acid
  • CAT. No.C980003
  • CAS. No.21732-17-2
  • Mol. F.C3H4N4O2
  • Mol. W.128.09 g/mol
  • Stock Status:Instock
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Cefazolin EP Impurity L
Cefazolin EP Impurity L
  • CAT. No.C980004
  • CAS. No.NA
  • Mol. F.C14H14N8O4S3
  • Mol. W.454.51 g/mol
  • Stock Status:Limited Stock
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Cefazolin EP Impurity C
Cefazolin EP Impurity C
  • CAT. No.C980005
  • CAS. No.56842-77-4
  • Mol. F.C11H12N6O4S
  • Mol. W.324.32 g/mol
  • Stock Status:Instock
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Cefazolin Pivaloyl
Cefazolin Pivaloyl
  • CAT. No.C980006
  • CAS. No.1798390-48-3
  • Mol. F.C16H20N4O4S3
  • Mol. W.428.55 g/mol
  • Stock Status:Instock
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Tetrazolyl Acetamide Acetal
Tetrazolyl Acetamide Acetal
  • CAT. No.C980007
  • CAS. No.1675245-47-2
  • Mol. F.C5H9N5O3
  • Mol. W.187.16 g/mol
  • Stock Status:Instock
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Cefazolin open-ring lactone
Cefazolin open-ring lactone
  • CAT. No.C980008
  • CAS. No.NA
  • Mol. F.C11H12N6O5S
  • Mol. W.340.30 g/mol
  • Stock Status:Custom Synthesis
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Cefotiam Impurity 8
Cefotiam Impurity 8
  • CAT. No.C980009
  • CAS. No.61607-66-7
  • Mol. F.C13H19N7O3S2
  • Mol. W.385.47 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin EP Impurity G
Cefazolin EP Impurity G
  • CAT. No.C980010
  • CAS. No.1172998-53-6
  • Mol. F.C11H10N6O4S
  • Mol. W.322.30 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin EP Impurity D
Cefazolin EP Impurity D
  • CAT. No.C980011
  • CAS. No.32510-61-5
  • Mol. F.C13H14N6O6S
  • Mol. W.382.35 g/mol
  • Stock Status:Custom Synthesis
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2-methyl-1,3,4-thiadiazole
2-methyl-1,3,4-thiadiazole
  • CAT. No.C980012
  • CAS. No.NA
  • Mol. F.C3H4N2S
  • Mol. W.100.14 g/mol
  • Stock Status:Custom Synthesis
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Acetic acid-2-(dithiocarboxy)hydrazide
Acetic acid-2-(dithiocarboxy)hydrazide
  • CAT. No.C980013
  • CAS. No.NA
  • Mol. F.C3H6N2OS2
  • Mol. W.150.22 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin 3-Hydroxymethyl Impurity
Cefazolin 3-Hydroxymethyl Impurity
  • CAT. No.C980014
  • CAS. No.478494-71-2
  • Mol. F.C11H12N6O5S
  • Mol. W.340.32 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin EP Impurity I
Cefazolin EP Impurity I
  • CAT. No.C980015
  • CAS. No.1675244-99-1
  • Mol. F.C14H16N8O5S3
  • Mol. W.472.52 g/mol
  • Stock Status:Under Synthesis
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Cefazolin EP Impurity B
Cefazolin EP Impurity B
  • CAT. No.C980016
  • CAS. No.2384108-14-7
  • Mol. F.C16H20N4O4S3
  • Mol. W.428.54 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin EP Impurity J
Cefazolin EP Impurity J
  • CAT. No.C980017
  • CAS. No.1675245-00-7
  • Mol. F.C11H12N6O5S
  • Mol. W.340.32 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin Open-Ring Isomers - delta-1, 2 & 3
Cefazolin Open-Ring Isomers - delta-1, 2 & 3
  • CAT. No.C980018
  • CAS. No.NA
  • Mol. F.C42H48N24O15S9
  • Mol. W.1417.57 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin EP Impurity L
Cefazolin EP Impurity L
  • CAT. No.C980019
  • CAS. No.NA
  • Mol. F.C14H14N8O4S3
  • Mol. W.454.51 g/mol
  • Stock Status:Instock
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Cefazolin 3-Hydroxymethyl Impurity Tetrabutylammonium
Cefazolin 3-Hydroxymethyl Impurity Tetrabutylammonium
  • CAT. No.C980020
  • CAS. No.478494-71-2 (free base)
  • Mol. F.C11H12N6O5S.C16H36N
  • Mol. W.582.78 g/mol
  • Stock Status:Instock
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Cefazolin Open-Ring Delta-3
Cefazolin Open-Ring Delta-3
  • CAT. No.C980021
  • CAS. No.NA
  • Mol. F.C14H16N8O5S3
  • Mol. W.472.52 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin EP Impurity K
Cefazolin EP Impurity K
  • CAT. No.C980022
  • CAS. No.2410652-70-7
  • Mol. F.C14H15N9O3S3
  • Mol. W.453.52 g/mol
  • Stock Status:Custom Synthesis
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Ceftolozane Impurity 1 Hydrochloride
Ceftolozane Impurity 1 Hydrochloride
  • CAT. No.C980023
  • CAS. No.113479-65-5
  • Mol. F.C16H17ClN2O4S.HCl
  • Mol. W.405.30 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin Impurity 5
Cefazolin Impurity 5
  • CAT. No.C980024
  • CAS. No.1797135-60-4
  • Mol. F.C5H9N5O3
  • Mol. W.187.16 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin EP Impurity D Sodium Salt
Cefazolin EP Impurity D Sodium Salt
  • CAT. No.C980025
  • CAS. No.27164-45-0
  • Mol. F.C13H14N6O6S.Na
  • Mol. W.405.34 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin Open-Ring Delta-2
Cefazolin Open-Ring Delta-2
  • CAT. No.C980026
  • CAS. No.NA
  • Mol. F.C14H16N8O5S3
  • Mol. W.472.52 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin Open-Ring Delta-4
Cefazolin Open-Ring Delta-4
  • CAT. No.C980027
  • CAS. No.NA
  • Mol. F.C14H16N8O5S3
  • Mol. W.472.52 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin sodium pentahydrate
Cefazolin sodium pentahydrate
  • CAT. No.C980028
  • CAS. No.115850-11-8
  • Mol. F.C14H14N8O4S3.Na.5H2O
  • Mol. W.567.58 g/mol
  • Stock Status:Custom Synthesis
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rac-Cefazolin Open-Ring Lactone
rac-Cefazolin Open-Ring Lactone
  • CAT. No.C980029
  • CAS. No.1675245-01-8
  • Mol. F.C11H12N6O5S
  • Mol. W.340.32 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin EP Impurity J Sodium
Cefazolin EP Impurity J Sodium
  • CAT. No.C980030
  • CAS. No.NA
  • Mol. F.C11H12N6O5S.Na
  • Mol. W.363.30 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin Delta-2-Isomer
Cefazolin Delta-2-Isomer
  • CAT. No.C980031
  • CAS. No.55390-53-9
  • Mol. F.C14H14N8O4S3
  • Mol. W.454.51 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin Diethylamide delta 2 Isomer
Cefazolin Diethylamide delta 2 Isomer
  • CAT. No.C980032
  • CAS. No.NA
  • Mol. F.C18H23N9O3S3
  • Mol. W.509.63 g/mol
  • Stock Status:Custom Synthesis
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Cefazolin Thioxo Analog
Cefazolin Thioxo Analog
  • CAT. No.C980033
  • CAS. No.1172998-54-7
  • Mol. F.C14H14N8O4S3
  • Mol. W.454.51 g/mol
  • Stock Status:Custom Synthesis
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