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Dhamtec Pharma and Consultants-

Impurity Standards

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Levetiracetam EP Impurity C

Product Code:
DH/LTM/1006		Molecular Formula:
C5H5NO
CAS Number:
72762-00-6		Molecular Weight:
95.1
Synonyms: Pyridin-2-ol


Levetiracetam EP Impurity D (R-enantiomer)

Product Code:
DH/LTM/1007		Molecular Formula:
C8H14N2O2
CAS Number:
103765-01-1		Molecular Weight:
170.21
Synonyms: (2R)-2-(2-Oxopyrrolidin-1-yl)butanamide


Levetiracetam USP Related Compound A

Product Code:
DH/LTM/1001		Molecular Formula:
C8H15ClN2O2
CAS Number:
102767-31-7		Molecular Weight:
206.67
Synonyms: (S)-N-(1-Amino-1-oxobutan-2-yl)-4-chlorobutanamide


Levocetirizine Impurity S-isomer

Product Code:
DH/LCT/1001		Molecular Formula:
C21H27Cl3N2O3
CAS Number:
163837-48-7		Molecular Weight:
461.81
Synonyms: 2-[2-[(S)-4-[(4-Chlorophenyl)phenylmethyl]piperazine-1-yl]ethoxy]acetic acid dihydrochloride


Levocetirizine Impurity Ethanol

Product Code:
DH/LCT/1002		Molecular Formula:
C21H29Cl3N2O2
CAS Number:
NA		Molecular Weight:
447.83
Synonyms: (?)-2-[(RS)-4-[(4-Chlorophenyl)phenylmethyl]piperazine-1-yl]ethoxy]ethanol dihydrochloride


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