124416-41-7 3-Pyridinecarboxylic acid, 1,4-dihydro-5-(5,5-dimethyl-1,3,2-dioxaphosphorinan-2-yl)-2,6-dimethyl-4-(3-nitrophenyl)-, 2-(4-(diphenylmethyl)-1-piperazinyl)ethyl ester, P-oxide, hydrochloride