2H-1,3-Oxazine-2-thione, 3,4,5,6-tetrahydro-6-(o-tolyloxymethyl)- 3,4,5,6-Tetrahydro-6-(o-tolyloxymethyl)-2H-1,3-oxazine-2-thione 57841-33-5 BRN 0525946