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Ondansetron
C18H19N3O 293.37
 4H-Carbazol-4-one, 1,2,3,9-tetrahydro-9-methyl-3-[(2-methyl-1H-imidazol-1-yl)methyl]- (±);
 9-Methyl-3-[(2-methyl-1H-imidazol-1-yl)methyl]-1,2,3,9-tetrahydro-4H-carbazol-4-one [99614-02-5]

DEFINITION

Ondansetron contains NLT 98.0% and NMT 102.0% of ondansetron (C18H19N3O), calculated on the anhydrous basis.

USP REFERENCE STANDARDS FOR PURCHASE

USP Ondansetron RS
USP Ondansetron Related Compound D RS
USP Ondansetron Related Compound G
USP Ondansetron Resolution Mixture RS
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