Gemcitabine- 13 C, 15 N 2 (hydrochloride) is the 13 C and 15 N labeled Gemcitabine hydrochloride. Gemcitabine Hydrochloride (LY 188011 Hydrochloride) is a pyrimidine nucleoside analog antimetabolite and an antineoplastic agent. Gemcitabine Hydrochloride inhibits DNA synthesis and repair, resulting in autophagyand apoptosis.