2-(Difluoromethyl)-DL-ornithine monohydrochloride, monohydrate 70052-12-9 96020-91-6 DL-Ornithine, 2-(difluoromethyl)-, monohydrochloride, monohydrate EFLORNITHINE HYDROCHLORIDE Eflornithine hydrochloride [USAN] Eflornithine hydrochloride monohydrate MDL 71,782 A