21787-36-0 4-ISOXAZOLECARBOXYLIC ACID, 5-METHYL-3-(5-NITRO-2-FURYL)-, 1-METHYL-4-PIPERIDYL 4-Isoxazolecarboxylic acid, 5-methyl-3-(5-nitro-2-furyl)-, 1-methyl-4-piperidyl ester 5-Methyl-3-(5-nitro-2-furyl)-4-isoxazolecarboxylic acid 1-methyl-4-piperidyl ester