89663-73-0

Buprenorphine IMpu MFRSJMQUIFQWSF-HITWJPLNSA-N Buprenorphine Impurity 9 (Buprenorphine EP Impurity I) Buprenorphine Furanyl IMpurity (Buprenorphine IMpurity I) Buprenorphine Furanyl Impurity (Buprenorphine Impurity I) (1.0mg/ml in Acetonitrile) (4bS,8R,8aS,9aR,12aR,12bR)-7-(CyclopropylMethyl)-5,6,7,8,9,9a,10,11-octahydro-10,10,11,11-tetraMethyl-8a,12a-ethano-4,8-Methano-12bH-benzofuro[3,2-e]furo[2,3-g]isoquinolin-1-ol 8a,12a-Ethano-4,8-methano-12bH-benzofuro[3,2-e]furo[2,3-g]isoquinolin-1-ol, 7-(cyclopropylmethyl)-5,6,7,8,9,9a,10,11-octahydro-10,10,11,11-tetramethyl-, (4bS,8R,8aS,9aR,12aR,12bR)-