2-(1-butylindol-3-yl)sulfanylacetic acid 2-[(1-butyl-3-indolyl)thio]acetic acid 2-[(1-butylindol-3-yl)thio]acetic acid 2-(1-butylindol-3-yl)sulfanylethanoic acid SMR000071314 CBKinase1_014155 MLS000099558 CBKinase1_001755 [(1-butyl-1H-indol-3-yl)thio]acetic acid