Dhamtec Pharma and Consultants-
Dhamtec Pharma and Consultants-

Impurity Standards

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Rizatriptan EP Impurity I

Product Code:
DH/RZT/1016		Molecular Formula:
C14H17N5
CAS Number:
144034-84-4		Molecular Weight:
255.32
Synonyms: N-Methyl-2-[5-(1H-1,2,4-trizol-1-ylmethyl)-1H-indol-3-yl)ethan-1-amine


Didesmethyl Rizatriptan

Product Code:
DH/RZT/1015		Molecular Formula:
C13H15N5
CAS Number:
144035-23-4		Molecular Weight:
241.29
Synonyms: 5-(1H-1,2,4-Triazol-1-ylmethyl)-1H-indole-3-ethanamine


Rosuvastatin EP Impurity A

Product Code:
DH/RSV/1001		Molecular Formula:
C25H34FN3O7S
CAS Number:
N/A		Molecular Weight:
539.61
Synonyms: (3R,5S,6E)-7-[4-(4-Fluorophenyl)-6-(1-methylethyl)-2-[methyl (2-hydroxy-2-methylpropylsulfonyl)amino]-5-pyrimidinyl]-3,5-dihydroxy- 6-heptenoic acid


Rosuvastatin EP Impurity B

Product Code:
DH/RSV/1002		Molecular Formula:
C22H27FN3NaO6S
CAS Number:
N/A		Molecular Weight:
503.52
Synonyms: (3RS,5RS,6E)-7-[4-(4-Fluorophenyl)-6-(1-methylethyl)-2-[methyl (methyl sulfonyl)amino]-5-pyrimidinyl]-3,5-dihydroxy- 6-heptenoic acid sodium salt


Rosuvastatin EP Impurity C

Product Code:
DH/RSV/1003		Molecular Formula:
C22H25FN3NaO6S
CAS Number:
N/A		Molecular Weight:
501.50
Synonyms: Sodium (3R,6E)-7-[4-(4-fluorophenyl)-2-(N-methylmethanesulfonamido)-6-(propan-2-yl)pyrimidin-5-yl]-3-hydroxy-5-oxo-hept-6-enoate


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