2-Phenyl-5,5-dimethyl-tetrahydro-1,4-oxazin-hydrochlorid [German] 2-Phenyl-5,5-dimethyl-tetrahydro-1,4-oxazine hydrochloride 36981-93-8 42013-48-9 Morpholine, 5,5-dimethyl-2-phenyl-, hydrochloride Phenyl dimethyltetrahydrooxazine