131733-92-1 6,7,8,9-Tetrahydro-5-(H)-benzocycloheptene-5-ol-4-ylideneacetic acid Acetic acid, (5,7,8,9-tetrahydro-5-hydroxy-6H-benzocyclohepten-6-ylidene)-, monosodium salt Ncs 382 Ncs 382 85 Ncs-382