Cefazolin Impurities

Cefazolin Related Products

SynZeal is a leading innovator in pharmaceutical reference standards. We supply high-quality Reference Standards of Cefazolin, pharmacopeial and non-pharmacopeial Cefazolin impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Cefazolin 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.

Cefazolin-related products are thoroughly characterized. Cefazolin 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.

Pharmaceutical Reference Standards

Cefazolin

SZ CAT No:	: SZ-C016022
CAS No	: 25953-19-9
Mol.F.	: C14H14N8O4S3
Mol.Wt.	: 454.5
Inv. Status	: In Stock
Rel. CAS No	: 27164-46-1 (Sodium salt)

Cefazolin 3-Hydroxymethyl (USP)

SZ CAT No:	: SZ-C016015
CAS No	: 478494-71-2
Mol.F.	: C11H12N6O5S
Mol.Wt.	: 340.3
Inv. Status	: In Stock
Rel. CAS No	: 50971-65-8 (Na salt)

Cefazolin Delta-2-Isomer

SZ CAT No:	: SZ-C016025
CAS No	: 55390-53-9
Mol.F.	: C14H14N8O4S3
Mol.Wt.	: 454.5
Inv. Status	: In Stock

Cefazolin Diethylamide Δ2 Isomer

SZ CAT No:	: SZ-C016018
CAS No	: NA
Mol.F.	: C18H23N9O3S3
Mol.Wt.	: 509.6
Inv. Status	: In Stock

Cefazolin EP Impurity A

SZ CAT No:	: SZ-C016002
CAS No	: 30246-33-4
Mol.F.	: C11H12N4O3S3
Mol.Wt.	: 344.4
Inv. Status	: In Stock
Rel. CAS No	: 66659-21-0 (Na salt) ; 88739-52-0 (K salt) ; 98493-37-9 (HCl salt)

Cefazolin EP Impurity B

SZ CAT No:	: SZ-C016003
CAS No	: 2384108-14-7
Mol.F.	: C16H20N4O4S3
Mol.Wt.	: 428.5
Inv. Status	: In Stock

Cefazolin EP Impurity C

SZ CAT No:	: SZ-C016004
CAS No	: 56842-77-4
Mol.F.	: C11H12N6O4S
Mol.Wt.	: 324.3
Inv. Status	: In Stock
Rel. CAS No	: 37051-04-0 (Na salt)

Cefazolin EP Impurity D

SZ CAT No:	: SZ-C016005
CAS No	: 32510-61-5
Mol.F.	: C13H14N6O6S
Mol.Wt.	: 382.4
Inv. Status	: In Stock
Rel. CAS No	: 27164-45-0 (Na salt) ; 117030-04-3 (K salt)

Cefazolin EP Impurity E

SZ CAT No:	: SZ-C016006
CAS No	: 29490-19-5
Mol.F.	: C3H4N2S2
Mol.Wt.	: 132.2
Inv. Status	: In Stock
Rel. CAS No	: 40045-85-0 (Na salt) ; 79929-61-6 (K salt)

Cefazolin EP Impurity G

SZ CAT No:	: SZ-C016023
CAS No	: 1172998-53-6
Mol.F.	: C11H10N6O4S
Mol.Wt.	: 322.3
Inv. Status	: In Stock

Cefazolin EP Impurity H

SZ CAT No:	: SZ-C016008
CAS No	: 957-68-6
Mol.F.	: C10H12N2O5S
Mol.Wt.	: 272.3
Inv. Status	: In Stock
Rel. CAS No	: 40994-22-7 (Na salt) ; 53064-81-6 (K salt) ; 57399-61-8 (HCl salt)
Rel. CAT No	: SZ-C077006 , SZ-C082031 , SZ-C087004 ,

Cefazolin Sodium

SZ CAT No:	: SZ-C016001
CAS No	: 27164-46-1
Mol.F.	: C14H13N8NaO4S3
Mol.Wt.	: 476.5
Inv. Status	: In Stock
Rel. CAS No	: 25953-19-9 (free base)

Tetrazolyl Acetamide Acetal (USP)

SZ CAT No:	: SZ-C016016
CAS No	: 1675245-47-2
Mol.F.	: C5H9N5O3
Mol.Wt.	: 187.2
Inv. Status	: In Stock

Tetrazolyl Acetamide Diethyl Acetal

SZ CAT No:	: SZ-C016013
CAS No	: 2150044-08-7
Mol.F.	: C9H17N5O3
Mol.Wt.	: 243.3
Inv. Status	: In Stock

Tetrazolylacetic Acid (USP)

SZ CAT No:	: SZ-C016014
CAS No	: 21732-17-2
Mol.F.	: C3H4N4O2
Mol.Wt.	: 128.1
Inv. Status	: In Stock
Rel. CAS No	: 51286-84-1 (Na salt) ; 51286-83-0 (K salt) ; 1222197-07-0 (HCl salt)

Cefazolin EP Impurity L

SZ CAT No:	: SZ-C016012
CAS No	: NA
Mol.F.	: C14H14N8O4S3
Mol.Wt.	: 454.5
Inv. Status	: Limited Stock

Cefazolin EP Impurity G (Triethylamine salt)

SZ CAT No:	: SZ-C016007
CAS No	: NA
Mol.F.	: C11H10N6O4S : C6H15N
Mol.Wt.	: 322.3 : 101.2
Inv. Status	: Out of Stock
Rel. CAS No	: 1172998-53-6 (free base)

Cefazolin EP Impurity I

SZ CAT No:	: SZ-C016009
CAS No	: 1675244-99-1
Mol.F.	: C14H16N8O5S3
Mol.Wt.	: 472.5
Inv. Status	: Custom Synthesis

Cefazolin EP Impurity J

SZ CAT No:	: SZ-C016010
CAS No	: 1675245-00-7
Mol.F.	: C11H12N6O5S
Mol.Wt.	: 340.3
Inv. Status	: Custom Synthesis

Cefazolin EP Impurity K

SZ CAT No:	: SZ-C016011
CAS No	: 2410652-70-7
Mol.F.	: C14H15N9O3S3
Mol.Wt.	: 453.5
Inv. Status	: Custom Synthesis

Cefazolin Impurity 1

SZ CAT No:	: SZ-C016017
CAS No	: 2416213-67-5
Mol.F.	: C18H20N4O8S2
Mol.Wt.	: 484.5
Inv. Status	: Custom Synthesis

Cefazolin Impurity 3

SZ CAT No:	: SZ-C016019
CAS No	: NA
Mol.F.	: C13H17N3O6S
Mol.Wt.	: 343.4
Inv. Status	: Custom Synthesis

Cefazolin Impurity 4

SZ CAT No:	: SZ-C016020
CAS No	: NA
Mol.F.	: C13H17N3O7S
Mol.Wt.	: 359.4
Inv. Status	: Custom Synthesis

Cefazolin Impurity 5

SZ CAT No:	: SZ-C016021
CAS No	: 1797135-60-4
Mol.F.	: C5H7N5O2
Mol.Wt.	: 169.1
Inv. Status	: Custom Synthesis

Cefazolin Impurity 7

SZ CAT No:	: SZ-C016043
CAS No	: NA
Mol.F.	: C11H14N6O6S
Mol.Wt.	: 358.3
Inv. Status	: Custom Synthesis

Cefazolin Open-Ring Delta-3 (USP)

SZ CAT No:	: SZ-C016044
CAS No	: NA
Mol.F.	: C14H16N8O5S3
Mol.Wt.	: 472.5
Inv. Status	: Custom Synthesis

Cefazolin Open-Ring Delta-4 (USP)

SZ CAT No:	: SZ-C016042
CAS No	: NA
Mol.F.	: C14H16N8O5S3
Mol.Wt.	: 472.5
Inv. Status	: Custom Synthesis

Cefazolin Open-Ring Lactone (USP)

SZ CAT No:	: SZ-C016024
CAS No	: NA
Mol.F.	: C11H12N6O5S
Mol.Wt.	: 340.3
Inv. Status	: Custom Synthesis

Cefazolin Open-Ring Delta-2 (USP)

SZ CAT No:	: SZ-C016045
CAS No	: NA
Mol.F.	: C14H16N8O5S3
Mol.Wt.	: 472.5
Inv. Status	:

Cefazolin Thioxo Analog (USP)

SZ CAT No:	: SZ-C016046
CAS No	: 1172998-54-7
Mol.F.	: C14H14N8O4S3
Mol.Wt.	: 454.5
Inv. Status	:

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