Dhamtec Pharma and Consultants-
Dhamtec Pharma and Consultants-

Impurity Standards

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Cimetidine EP Impurity A

Product Code:
DH /CDN/1001		Molecular Formula:
C10H15N5S2
CAS Number:
52378-40-2		Molecular Weight:
269.39
Synonyms: Methyl 3-cyano-1-[2-[[(5-methyl-1H-imidazol-4-yl)methyl]sulfanyl]ethyl] carbamimidothioate


Cimetidine EP Impurity B

Product Code:
DH /CDN/1002		Molecular Formula:
C10H15N5OS
CAS Number:
138035-55-9		Molecular Weight:
253.32
Synonyms: Methyl 3-cyano-1-[2-[[(5-methyl-1H-imidazol-4-yl)methyl]sulfanyl]ethyl]-carbamimidate


Cimetidine EP Impurity C

Product Code:
DH /CDN/1003		Molecular Formula:
C10H20Cl2N6OS
CAS Number:
52568-80-6		Molecular Weight:
343.28
Synonyms: 1-[(Methylamino)-[[2-[[(5-methyl-1H-imidazol-4-yl)methyl]sulfanyl]-ethyl]amino] methylidene]urea dihydrochloride


Cimetidine EP Impurity D

Product Code:
DH /CDN/1004		Molecular Formula:
C9H19Cl2N5S
CAS Number:
59660-24-1		Molecular Weight:
300.25
Synonyms: -Methyl-3-[2-[[(5-methyl-1Himidazol-4-yl)methyl]sulfanyl]ethyl]guanidine dihydrochloride.


Cimetidine EP Impurity E

Product Code:
DH /CDN/1005		Molecular Formula:
C10H16N6OS
CAS Number:
54237-72-8		Molecular Weight:
268.34
Synonyms: 2-Cyano-1-methyl-3-[2-[[(5-methyl-1H-imidazol-4-yl)methyl]sulfinyl]-ethyl]guanidine


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