Gemcitabine-13C,15N2 (hydrochloride) is the 13C and 15N 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.