20681-S 73361-71-4 L-17-Cyclopropylmethyl-3-hydroxymorphinan-6-one methanesulfonate L-3-Hydroxy-6-oxo-N-cyclopropylmethylmorphinan methansulfonate Morphinan-6-one, 17-(cyclopropylmethyl)-3-hydroxy-, methanesulfonate, L-