4H-1,3-Oxazin-2-amine, 5,6-dihydro-N-(4-methoxyphenyl)-4,4,6-trimethyl-, monohydrochloride 4H-1,3-Oxazine, 5,6-dihydro-2-p-anisidino-4,4,6-trimethyl-, hydrochloride 5,6-Dihydro-2-p-anisidino-4,4,6-trimethyl-4H-1,3-oxazine hydrochloride 72549-84-9