Synonyms: Glucopyranosiduronicacid, 7,8-didehydro-4,5a-epoxy-3-hydroxy-17-methylmorphinan-6a-yl, b-D- (8CI); Morphinan, b-D-glucopyranosiduronic acid deriv.; Morphinan-3-ol, 7,8-didehydro-4,5a-epoxy-6a-(b-D-glucopyranuronosyloxy)-17-methyl- (8CI); Morphine6-O-glucuronide; Morphine 6-glucuronide; Morphine 6-b-D-glucopyranosiduronide; Morphine 6-b-D-glucuronide; Morphineglucuronide