881426-82-0 6,7,8-Isoquinolinetriol, 1,1'-(2,5-thiophenediyl)bis[1,2,3,4-tetrahydro-,(1S,1'S)- 881426-84-2 6,7,8-Isoquinolinetriol, 1,1'-(1,3-phenylene)bis[1,2,3,4-tetrahydro-,(1R,1'R)- 881427-00-5 6,7,8-Isoquinolinetriol, 1,1'-(1,4-phenylene)bis[1,2,3,4-tetrahydro-,(1R,1'R)-rel-