64047-67-2 Ammonium, (3-(2-methyl-1,2,3,4-tetrahydroisoquinolinio)propyl)trimethyl-, dibromide IN 243 ISOQUINOLINIUM, 1,2,3,4-TETRAHYDRO-2-METHYL-2-(3-(TRIMETHYLAMMONIO)PROPYL)-, DIB Isoquinolinium, 1,2,3,4-tetrahydro-2-methyl-2-(3-(trimethylammonio)propyl)-, dibromide