23509-21-9 5-Methylbatrachotoxin BATRACHOTOXININ A, 20-alpha-(2,4,5-TRIMETHYL-1H-PYRROLE-3-CARBOXYLATE) BRN 1613226 Batrachotoxinin A, 20-(2,4,5-trimethylpyrrole-3-carboxylate) Batrachotoxinin A, 20-(2,4,5-trimetyl-1H-pyrrole-3-carboxylate)