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Pharmaceutical analytical standards

APIs, pharmacopoeial impurities, metabolites, nitrosamines and labelled standards.

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Results 5,461-5,470 of 36,550

Cefazolin Impurity 20

ImpurityLevels of characterisation
Cat. No.
P-C076-044
Formula
C10H13N3O4S
Family
Cefazolin
Synonyms
[(6R,7R)-7-Amino-2-carbamoyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl acetate

Cefazolin Impurity 22

ImpurityLevels of characterisation
Cat. No.
P-C076-046
Formula
C8H12N2OS2
Family
Cefazolin
Synonyms
S-(5-Methyl-1,3,4-thiadiazol-2-yl) 2,2-dimethylpropanethioate

Cefazolin Impurity 24

ImpurityLevels of characterisation
Cat. No.
P-C076-049
Formula
C4H9NOS2
Family
Cefazolin
Synonyms
Methyl N-(2-hydroxyethyl)carbamodithioate

Cefazolin Impurity 25

ImpurityLevels of characterisation
Cat. No.
P-C076-050
Formula
C14H17N9O4S3
Family
Cefazolin
Synonyms
(2R)-2-[(2R)-4-Carbamoyl-5-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-3,6-dihydro-2H-1,3-thiazin-2-yl]-2-[[2-(tetrazol-1-yl)acetyl]amino]acetic acid

Cefazolin Impurity 28

ImpurityLevels of characterisation
Cat. No.
P-C076-053
Formula
C14H15N9O3S3
Family
Cefazolin
Synonyms
(6R,7R)-3-[(5-Methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-8-oxo-7-[[2-(tetrazol-1-yl)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxamide

Cefazolin Impurity 29

ImpurityLevels of characterisation
Cat. No.
P-C076-054
Formula
C25H26N14O9S4
Family
Cefazolin
Synonyms
(6R,7R)-3-[[(2R)-2-[(R)-Carboxy-[[2-(tetrazol-1-yl)acetyl]amino]methyl]-5-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-3,6-dihydro-2H-1,3-thiazine-4-carbonyl]oxymethyl]-8-oxo-7-[[2-(tetrazol-1-yl)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Cefazolin Impurity 30

ImpurityLevels of characterisation
Cat. No.
P-C076-055
Formula
C18H20N4O8S2
Family
Cefazolin
Synonyms
(6R,7R)-3-[[[(6R,7R)-3-(Acetyloxymethyl)-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-7-yl]amino]methyl]-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, Dimeric 7-ACA

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