Tiotropium

Tiotropium EP Impurity A Tiotropium Impurity A:

2-Hydroxy-2,2-dithiophen-2-ylacetic acid ; CAS : 4746-63-8 ; C10H8O3S2 ; MW: 240.30 ;
Tiotropium EP Impurity B Tiotropium Impurity B:

(1R,2R,4S,5S,7s)-9-Methyl-3-oxa-9-azatricyclo[3.3.1.02,4]nonan-7-yl 2-hydroxy-2,2-dithiophen-2-ylacetate ; CAS:  136310-64-0 ; C18H19NO4S2 ; MW: 377.48 ;
Tiotropium EP Impurity C Tiotropium Impurity C:

(1R,3s,5S)-3-[(2-Hydroxy-2,2-dithiophen-2-ylacetyl)oxy]-8,8-dimethyl-8-azoniabicyclo[3.2.1]oct-6-ene bromide ; CAS : 136310-95-7 ; C19H22NBrO3S2 ; MW: 456.42 ;
Tiotropium EP Impurity D Tiotropium Impurity D :

(1R,3S,5S)-8-Methyl-8-azabicyclo[3.2.1]oct-6-en-3-yl 2-hydroxy-2,2-dithiophen-2-ylacetate ; CAS : 136310-66-2 ; C18H19NO3S2 ; MW: 361.48 ;
Tiotropium EP Impurity E Tiotropium Impurity E :

Methyl 2-hydroxy-2,2-dithiophen-2-ylacetate ; CAS : 26447-85-8 ; C11H10O3S2 ; MW: 254.33 ;
Tiotropium EP Impurity F Tiotropium Impurity F :

Dithiophen-2-ylmethanone ; CAS : 704-38-1 ; C9H6OS2 ; MW: 194.27 ;
Tiotropium EP Impurity G Tiotropium Impurity G:

(1R,2R,4S,5S,7s)-7-Hydroxy-9,9-dimethyl-3-oxa-9-azoniatricyclo [3.3.1.02,4] nonane bromide ; CAS : 1508-46-9 ; C9H16NBrO2 ; MW: 250.13 ;