Category
Ondansetron
CAS Number
Ondansetron STD - 99614-02-5 ; IMP - A - 153139-56-1;IMP - C - 27387-31-1 ; IMP - D - 99614-64-9 ; IMP - G - 99614-03-6 ;
Alternate CAS Number
Ondansetron STD - 103639-04-9 (HCL Dihydrate) , 99614-01-4 (HCl Salt) ; IMP - A - 119812-29-2 (HCL SALT);
Molecular Formula
Ondansetron STD - C18H19N3O ; IMP - A - C16H20N2O ; IMP - C - C13H13NO ; IMP - D - C14H13NO ; IMP - G - C17H17N3O ;
Molecular Weight
Ondansetron STD - 293.40 g/mol ; IMP - A - 256.35 g/mol ; IMP - C - 199.2 g/mol ; IMP - D - 211.3 g/mol ; IMP - G - 279.3 g/mol ;
Synonym

Ondansetron STD - (±)-2,3-Dihydro-9-methyl-3-[(2-methylimidazol-1-yl)methyl]carbazol-4(1H )-one;1,2,3,4-Tetrahydro-9-methyl-3-[(2-methyl-1H-imidazol-1-yl)methyl]-9H-carbazol-4-one; Ondanles; Setron; Yatrox; Zofran; Zophren; Zudan;  4H -Carbazol-4-one, 1,2,3,9-tetrahydro-9-methyl-3-[(2-methyl-1H -imidazol-1-yl)methyl]- (±)-);

Ondansetron EP Impurity - A - (3RS)-3-[(Dimethylamino)methyl]-9-methyl-1,2,3,9-tetrahydro-4H-carbazol-4-one; 3[(Dimethylamino)methyl]-1,2,3,9-tetrahydro-9-methyl-4H -carbazol-4-one; Ondansetron Related Compound A) ;

Ondansetron EP Impurity - C - 9-Methyl-1,2,3,9-tetrahydro-4H-carbazol-4-one ; 2,3-Dihydro-9-methylcarbazol-4(1H)-one; 1,2,3,9-Tetrahydro-9-methyl-4H -carbazol-4-one;Ondansetron Related Compound C ;

Ondansetron EP Impurity - D - 9-methyl-3-methylidene-1,2,3,9-tetrahydro-4H-carbazol-4-one ;  (1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one) ; 

Ondansetron EP Impurity - G - (3RS)-3-[(1H-Imidazol-1-yl)methyl]-9-Methyl-1,2,3,9-tetrahydro-4H-carbazol-4-one; 1,2,3,9-Tetrahydro-3-(1H-imidazol-1-ylmethyl)-9-methyl-4H-carbazol-4-one; C-Desmethylondansetron; Ondansetron Related Compound G; Desmethylondansetron; 3-[(1H-Imidazol-1-yl)methyl]-9-methyl-1,2,3,9-tetrahydro-4H-carbazol-4-one ;

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Ondansetron for TLC System Suitability CRS is a chemical reference substance used to verify that a thin-layer chromatography (TLC) system is performing correctly. Its main applications are to ensure adequate identity confirmation, resolution, sensitivity, and reproducibility of the TLC method before analyzing actual samples, particularly in quality-control testing of pharmaceutical formulations containing ondansetron.