3.5- Dimethyl-tetrahydro-1,3,5-thiadiazine-2-thione

The salts of metham are not stable in solid form, so they are marketed as relatively dilute aqueous solutions, which makes their use rather expensive. When the reaction of methyl amine with carbon disulfide is carried out in the presence of formaldehyde, the stable solid compound 3,5-dimethyl-tetrahydro-1,3,5-thiadiazine-2-thione, or dazomet (11), is obtained. It is applied as a dust or as a concentrated prill. 

E. V. Karaseva, S. N. Dedyukhina, and A. A. Dedyukhin. Treatment of water-based drilling solution to prevent microbial attack— by addition of dimethyl-tetrahydro-thiadiazine-thione bactericide. Patent RU 2036216-C, 1995. 

THIADIAZINE-2-THIONE TETRAHYDRO-3,5-DIMETHYL-2H-1,3,5-THIADIAZINE-2-THIONE THIAZON THIAZONE 2-THIO-3,5-DIMETHYL-TETRAHYDRO-l,3,5-THIADIAZINE TIAZON TROYSAN 142 UCC 974... 

Isothiazolones and related chlorinated 3,5-Dimethyl tetrahydro-1, 3,5,-2H-thiadiazine-2-thione,... 

Bromo-2-nitropropane-1,2-diol 2-bromo-4-hydroxy-acetophenone l,2-Dibromo-2,4-dicyanobutane 2,2-dibromo-3-nitrilopropionamide 3.5-Dimethyl tetrahydro-2H-l,3,5-thiadiazine-2-thione disodium ethylene) (1,5-Pentanedial) 2-hydroxypropyl... 

Tetrahydro-3,5-dimethyl-1,3,5-thiadiazine-2-lhione Telrahydro-3,5-dim> ethyl-2H-1,3,5-thiadiazine-2-thione. See 3,S-Dimethyl tetrahydro-2-... 

H-1,3,5-Thiadiazine-2-thione, tetrahydro-3,5-dimethyl-. See 3,5-Dimethyl tetrahydro-2-H,1,3,5-thiadiazone-2-thione... 

Glutaraldehyde (III.2.3), acrolein (III.2.4) 3,5-Dimethyl-tetrahydro-l,3,5-2H-thiadiazine-2-thione (III.3.3.16) 2,2-Dibromo-3-nitrilopropionamide (IIL8.5)... 

Dimethyl-tetrahydro-l,3,5-2H-thiadiazine-2-thione has a broad spectrum of high activity which covers bacteria, fungi and yeast, indicating that the substance is a specialised formaldehyde-releasing compound. 

The spectrum of activity is attractive for application in a number of industrial systems, e.g. as a broad spectrum microbidde which prevents fungal blooms in metal working fluid systems. However, there are limitations, including the finding that 3,5-Dimethyl-tetrahydro-l,3,5-2H-thiadiazine-2-thione is very unstable at increased temperatures. Under alkaline conditions it is found that more decomposition products are formed than under pH neutral conditions (e.g. wet-end system). 

TETRAHYDRO-3,5-DIMETHYL-4H,l,3,5-OXADIAZINE-4-THIONE see TCQ275 TETRAHYDRO-2H-3,5-DIMETHYL-l,3,5-THIADIAZINE-2-THIONE see DSB200 TETRAHYDRO-3,5-DIMETHYL-2H-l,3,5-THIADIAZINE-2-THIONE see DSB200 TETRAHYDRO-p-DIOXIN see DVQOOO TETRAHYDRO-l,4-DIOXIN see DVQOOO TETRAHYDRO-2,5-DIOXOFURAN see SNCOOO... 

Of the derivatives, 5-carboxymethyl-3-methyl-tetrahydro-l,3,5-thiadiazine-2-thione (thiadiazinethion, 17), its sodium salt, and 3,3 -ethylene-bistetrahydro-4,6-dimethyl-2H-l,3,5-thiadiazine-2-thione (milneb, 18) have been used in agriculture, the latter being effective also against apple scab, tobacco peronospora and potato blight. 

Dazomet, Tetrahydro-.t.5-dimelhyl-2l -l, .1.5-thia-diazine-2-thione 2 -thio -3,5 -dimethyltetrahydro -1,3,5 -thia -diazine 3,5 -dimethyl -2 -i hionoietrahydro -1,3,5 -thiadiazine dimethylformocarbothialdine DMTT, Crag 974 Mylone. CjHjoNjS, mol wt 162.27. C 37.01%, H 6.21%, N 17.27%, S 39.52%. Frepd by the action of carbon disulfide on trimeth-yltrimethylenelriimine Dalepine, Bull. Soc. Ckim. 15, 891 (1897) from formaldehyde and methylammonium methyldi-thiocarbamate Bodendorf. J. Prakl. Chem. 126, 233 (1930) Ainley et al. J. Chem. Soc. 1944, 147. Prepd commercially by the reaction of carbon disulfide, meihylamine and caustic soda Chem. Week 79, no. 18, 82-83 (1956). 

Chem. Descrip. Tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione CAS 533-74-4 EINECS/ELINCS 208-576-7 Uses Rreservative for pigment slurries ind. those based on aluminum silicate, calcium carbonate, and titanium dioxide for use in coated/un-coated paper/papetboard for food contact applies. food-contact slimickte bactericide in leather prod. 

Chem. Descrip. Tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione... 

Tetrahydro-3,5-dimethyl-2//-l,3,5-thiadiazine-2-thione, see Dazomet Tetrahydro-2/f-3,5-dimethyl-l,3,5-thiadiazine-2-thione, see Dazomet... 

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