Impurities
(R)-Sitagliptin Methyl-Ester Impurity
| Product Code: | Ax-IMP2427 |
| CAS Number: | 881995-69-3 |
| Synonyms: | methyl (R)-3-amino-4-(2,4,5-trifluorophenyl)butanoate |
| Molecular Formula: | C11H12F3NO2 |
| Molecular Weight: | 247.22 |
Daunorubicinol
| Product Code: | Ax-IMP2430 |
| CAS Number: | 28008-55-1 |
| Synonyms: | (8S,10S)-10-(((2R,4S,5R,6S)-4-amino-5-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-6,8,11-trihydroxy-8-(1-hydroxyethyl)-1-methoxy-7,8,9,10-tetrahydrotetracene-5,12-dione hydrochloride |
| Molecular Formula: | C27H32ClNO10 |
| Molecular Weight: | 566 |
Dimenhydrinate Impurity E
| Product Code: | Ax-IMP2439 |
| CAS Number: | 4921-49-7 |
| Synonyms: | 8-chloro-1,3,7-trimethyl-3,7-dihydro-1H-purine-2,6-dione |
| Molecular Formula: | C8H9ClN4O2 |
| Molecular Weight: | 228.64 |
Tramadol Impurity C
| Product Code: | Ax-IMP2426 |
| CAS Number: | 66170-31-8 |
| Synonyms: | 1-(3'-methoxy-2,3,4,5-tetrahydro-[1,1'-biphenyl]-2-yl)-N,N-dimethylmethanamine hydrochloride |
| Molecular Formula: | C??H??ClNO |
| Molecular Weight: | 281.82 |
Donepezil Impurity D
| Product Code: | Ax-IMP2440 |
| CAS Number: | NA |
| Synonyms: | 2-((1-benzyl-1,2,3,6-tetrahydropyridin-4-yl)methyl)-5,6-dimethoxy-2,3-dihydro-1H-inden-1-one |
| Molecular Formula: | C24H27NO3 |
| Molecular Weight: | 377.48 |
Donepezil Process Impurity 4
| Product Code: | Ax-IMP2441 |
| CAS Number: | 4803-74-1 |
| Synonyms: | (E)-5,6-dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydro-1H-inden-1-one |
| Molecular Formula: | C17H15NO3 |
| Molecular Weight: | 281.31 |
Donepezil Process Impurity 5
| Product Code: | Ax-IMP2442 |
| CAS Number: | 4803-57-0 |
| Synonyms: | 5,6-dimethoxy-2-(pyridin-4-ylmethyl)-2,3-dihydro-1H-inden-1-one |
| Molecular Formula: | C17H17NO3 |
| Molecular Weight: | 283.32 |
Donepezil Process Impurity 6
| Product Code: | Ax-IMP2443 |
| CAS Number: | NA |
| Synonyms: | 1-benzyl-4-((5,6-dimethoxy-1-oxo-2,3-dihydro-1H-inden-2-yl)methyl)pyridin-1-ium bromide |
| Molecular Formula: | C24H24NO3(1+)*Br(1-) |
| Molecular Weight: | 454.36 |
Donepezil Process Impurity 7
| Product Code: | Ax-IMP2444 |
| CAS Number: | NA |
| Synonyms: | 2-((1-benzyl-1,2,3,6-tetrahydropyridin-4-yl)methyl)-5,6-dimethoxy-2,3-dihydro-1H-inden-1-ol |
| Molecular Formula: | C24H29NO3 |
| Molecular Weight: | 379.5 |
Ribociclib Intermediate 3
| Product Code: | Ax-IMP2450 |
| CAS Number: | 1374639-77-6 |
| Synonyms: | (2-chloro-7-cyclopentyl-7H-pyrrolo[2,3-d]pyrimidin-6-yl)methanol |
| Molecular Formula: | C12H14ClN3O |
| Molecular Weight: | 251.71 |