Gemcitabine HCL  (CAS:　122111-03-9)

Gemcitabine Base  (CAS: 95058-81-4)

2-Deoxy-2,2-difluoro-D-erythro-pentofuranose-3,5-dibenzoate-1-methanesulfonate     (CAS: 122111-11-9)

2-Deoxy-2,2-difluoro-D-erythro-pentofuranose-1-ulose-3,5-dibenzoate     (CAS:  122111-01-7）

2’,2’-Difluoro-2’-Deoxycytidine-3’,5’-Dibenzoate     (CAS: 134790-39-9)