21677-49-6 2H-Indazole-3-acetic acid, 4,5,6,7-tetrahydro-2-methyl- 4,5,6,7-Tetrahydro-2-methyl-2H-indazole-3-acetic acid 5-25-04-00221 (Beilstein Handbook Reference) BRN 0613374 Poli 144