4H-1,3,5-DITHIAZINE, DIHYDRO-5-NITROSO-2,4,6-TRIMETHYL- 81795-07-5 BRN 4981019 Dihydro-5-nitroso-2,4,6-trimethyl-4H-1,3,5-dithiazine N-Nitrosothialdine