Tetrahydro-3,5-dimethyl-2H-l,3,5-thiadiazine

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... 

METASOL D3T is a preservative effective against a broad spectrum of bacteria and fungi in coatings, clay slurries, adhesives, glues, latex, emulsions, casein, and titanium dioxide slurries. Chemically, the product is tetrahydro-3,5-dimethyl-2H-l,3,5-thiadiazine-2-thione. 

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). 

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. 

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... 

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)... 

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... 

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