10550-22-8 7-Hydroxy-4-methyl-8-(piperidinomethyl)-4-methylcoumarin isonicotinate (salt) COUMARIN, 7-HYDROXY-4-METHYL-8-(PIPERIDINOMETHYL)-4-METHYL-, ISONICOTINATE (salt Coumarin, 7-hydroxy-4-methyl-8-(piperidinomethyl)-4-methyl-, isonicotinate (salt)