Dhamtec Pharma and Consultants-
Dhamtec Pharma and Consultants-

Impurity Standards

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Famotidine EP Impurity C

Product Code:
DH/FTD/1003		Molecular Formula:
C8H14N6O3S3
CAS Number:
76824-17-4		Molecular Weight:
338.43
Synonyms: 3-[[[2-[(Aminoiminomethyl)amino]-4-thiazolyl]methyl]thio]-N-(aminosulfonyl)propanamide


Famotidine EP Impurity D

Product Code:
DH/FTD/1004		Molecular Formula:
C8H13N5OS2
CAS Number:
76824-16-3		Molecular Weight:
259.35
Synonyms: 3-[[[2-[(Diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]propanamide


Famotidine EP Impurity F

Product Code:
DH/FTD/1006		Molecular Formula:
C8H12N4O2S2
CAS Number:
107880-74-0		Molecular Weight:
260.34
Synonyms: 3-[[[2-[(Diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]propanoic acid


Famotidine EP Impurity E

Product Code:
DH/FTD/1005		Molecular Formula:
C10H14N8S4
CAS Number:
129083-44-9		Molecular Weight:
374.54
Synonyms: 2,2'-[Disulphanediylbis(methylenethiazole-4,2-diyl)]diguanidine


Febuxostat Impurity Isopropyl Ester

Product Code:
DH/FBS/1001		Molecular Formula:
C19H22N2O3S
CAS Number:
NA		Molecular Weight:
358.45
Synonyms: Isopropyl 2-(3-cyano-4-isobutoxyphenyl)-4-methylthiazole-5-carboxylate


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