2H-1,3,5-Thiadiazine-2-thione, tetrahydro-5-(2-hydroxyethyl)-3-methyl- 63906-70-7 Bayer 29759 ENT 25,541 Tetrahydro-5-(2-hydroxyethyl)-3-methyl-2H-1,3,5-thiadiazine-2-thione