Impurities
Ezetimibe (Form-B) working standard
| Product Code: | NA |
| CAS Number: | Ax-IMP2333 |
| Synonyms: | (3R,4S)-1-(4-fluorophenyl)-3-((S)-3-(4-fluorophenyl)-3-hydroxypropyl)-4-(4-hydroxyphenyl)azetidin-2-one |
| Molecular Formula: | C24H21F2NO3 |
| Molecular Weight: | 409.43 |
Doxepin Impurity B
| Product Code: | Ax-IMP2332 |
| CAS Number: | 4504-88-5 |
| Synonyms: | 11-(3-(dimethylamino)propyl)-6,11-dihydrodibenzo[b,e]oxepin-11-ol |
| Molecular Formula: | C19H23NO2 |
| Molecular Weight: | 297.39 |
Doxepin Impurity A
| Product Code: | Ax-IMP2331 |
| CAS Number: | 4504-87-4 |
| Synonyms: | dibenzo[b,e]oxepin-11(6H)-one |
| Molecular Formula: | C14H10O2 |
| Molecular Weight: | 210.23 |
5-Desfluoro Sitagliptin
| Product Code: | Ax-IMP2330 |
| CAS Number: | 1345822-86-7 |
| Synonyms: | (R)-3-amino-4-(2,4-difluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one phosphate |
| Molecular Formula: | C16H16F5N5O.H3O4P |
| Molecular Weight: | 389.33.97.99 |
4-Desfluoro Sitagliptin
| Product Code: | Ax-IMP2328 |
| CAS Number: | 486460-31-5; 1345822-87-8 (salt) |
| Synonyms: | (R)-3-amino-4-(2,5-difluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one |
| Molecular Formula: | C16H16F5N5O |
| Molecular Weight: | 389.32 |
Sitagliptin Process Impurity 5
| Product Code: | Ax-IMP2329 |
| CAS Number: | 767352-30-7 |
| Synonyms: | (R)-1-(benzyloxy)-4-(2,4,5-trifluorobenzyl)azetidin-2-one |
| Molecular Formula: | C17H14F3NO2 |
| Molecular Weight: | 321.3 |
Pantoprazole Sodium Sesquihydarate Reference Standard
| Product Code: | Ax-IMP2327 |
| CAS Number: | 164579-32-2 |
| Synonyms: | 5-(difluoromethoxy)-2-(((3,4-dimethoxypyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole |
| Molecular Formula: | C16H14F2N3O4S.Na.xH2O |
| Molecular Weight: | 405.35 |
Esomeprazole Sodium Reference Standard
| Product Code: | Ax-IMP2326 |
| CAS Number: | 161796-78-7 |
| Synonyms: | sodium (R)-6-methoxy-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)benzo[d]imidazol-1-ide |
| Molecular Formula: | C17H18N3NaO3S |
| Molecular Weight: | 367.4 |
Levothyroxine For Peak Identification
| Product Code: | Ax-IMP2325 |
| CAS Number: | 55-03-8 |
| Synonyms: | (S)-2-amino-3-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)propanoic acid |
| Molecular Formula: | C15H11I4NO4 |
| Molecular Weight: | 776.87 |
Venlafaxine Process Impurity 4
| Product Code: | Ax-IMP2310 |
| CAS Number: | 19625-79-7 |
| Synonyms: | 2-(4-methoxyphenyl)-N,N-dimethylacetamide |
| Molecular Formula: | C11H15NO2 |
| Molecular Weight: | 193.25 |