Sr.No. | Chemical Name | CAS No. | Used for |
Pioglitazone hydrochloride | |||
1 | 5-Hydroxy Pioglitazone
(5-[[4-[2-(5-Ethyl-2-pyridinyl)ethoxy]phenyl]methyl]-5-hydroxy-2,4-thiazolidinedione) |
625853-74-9 | Imp A as per EP |
Didehydro Pioglitazone Impurity
(5-{4-[2-(5-Ethyl-2-pyridinyl) ethoxy] benzylidene}-2,4-thiazolidinedione) |
136401-69-9 | Imp B as per EP | |
2 | 5-[[4-[2-(5-Ethyl-2-pyridinyl)ethoxy] phenyl]methyl]-N-[2-(5-ethylpyridin-2-yl)ethyl]-2,4-thiazolidinedione | 952188-00-0 | Imp C as per EP |
3 | Ethyl (2RS)-2-(carbamoylsulphanyl)-3-[4-[2-(5-ethylpyridin-2-yl) ethoxy] phenyl] propanoate | 868754-42-1 | Imp D as per EP |
4 | Ethyl 3-(4-(2-(5-ethylpyridin-2-yl)ethoxy)phenyl)propanoate | 868754-42-1 | Imp E as per EP |
5 | 2-(2-(4-((2,4-dioxothiazolidin-5-yl)methyl)phenoxy)ethyl)-5-ethylpyridine 1-oxide | 145350-09-0 | – |
6 | 4-(2-(5-ethylpyridin-2-yl)ethoxy)benzaldehyde | 114393-97-4 | Aldehyde imp. |
7 | (4-(2-(5-ethylpyridin-2-yl)ethoxy)phenyl)methanol | 144842-17-1 | – |
8 | 5-(4-hydroxybenzyl)thiazolidine-2,4-dione | 74772-78-4 | Metaboite |
9 | 5-Ethyl-2-vinylpyridine | 5408-74-2 | – |