1H-Benzimidazole-5-carboxylic acid, 7-(aminosulfonyl)-1-(2-phenylethyl)- 5-25-09-00242 (Beilstein Handbook Reference) 7-(Aminosulfonyl)-1-(2-phenylethyl)-1H-benzimidazole-5-carboxylic acid 72020-24-7 BRN 0938302