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

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Chemical Name: (6R,7R)-7-[(2,2-Dimethylpropanoyl)amino]-3-[[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (as per EP); (6R,7R)-3-((5-Methyl-1,3,4-thiadiazol-2-ylthio)methyl)-8-oxo-7-pivalamido-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (as per USP)

Synonym: Cefazolin Pivaloyl (USP)

Shipping Temperature: Ambient

HSN Code: 38229010

Country of Origin: India

Smiles: O=C(C(N12)=C(CSC3=NN=C(C)S3)CS[C@]2([H])[C@H](NC(C(C)(C)C)=O)C1=O)O

Embryo and developmental toxicity of cefazolin sodium impurities in zebrafish
By Chen, Bo; Gao, Zhu-Qing; Liu, Ying; Zheng, Yang-Min; Han, Ying; Zhang, Jing-Pu; Hu, chang-Qin
From Frontiers in Pharmacology (2017), 8, 403/1-403/13

Stability of cefazolin sodium for injection in different solvents
By Peng, Yan; Zhang, Ling-li; Shen, Bing-zheng; Wu, Yue; Zhou, Ding-shan; Song, Jin-chun
From Xiandai Yaowu Yu Linchuang (2014), 29(7), 813-817

Comparison study of impurity contents of cefazolin sodium pentahydrate and cefazolin sodium
By Chen, Yong-gang; Ma, Chuan-xue; Yang, Qing; Liu, Xiao-ling; Li, Fan; Lu, Xiang; Sun, Yuan-feng
From Zhongguo Yaofang (2013), 24(25), 2383-2386

Cefazolin EP Impurity B is chemically (6R,7R)-7-[(2,2-Dimethylpropanoyl)amino]-3-[[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (as per EP); (6R,7R)-3-((5-Methyl-1,3,4-thiadiazol-2-ylthio)methyl)-8-oxo-7-pivalamido-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (as per USP). It is also known as Cefazolin Pivaloyl (USP). Cefazolin EP Impurity B is supplied with detailed characterization data compliant with regulatory guideline. Cefazolin EP Impurity B can be used for the analytical method development, method validation (AMV), Quality Controlled (QC) application for Abbreviated New Drug Application (ANDA) or during commercial production of Cefazolin.

The product can be used as reference standards and further traceability against pharmacopeial standards (USP or EP) can be provided based on feasibility. SynZeal products are for analytical purpose only and not for human use.

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)

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)

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)

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)

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 B

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

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

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

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

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)

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 ,

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

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

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

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

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)

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

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

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

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

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

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

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)

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

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