(-)-(S)-4-(3,4-Dihydroxyphenyl)-7,8-dihydroxy-1,2,3,4-tetrahydroisoquinoline 138086-00-7 7,8-Ddpti 7,8-Dihydroxy-4-(3,4-dihydroxyphenyl)-1,2,3,4-tetrahydroisoquinoline 7,8-Isoquinolinediol, 4-(3,4-dihydroxyphenyl)-1,2,3-tetrahydro-, hydrochloride, (S)- YM 435 YM-435