The information of Thiocarbohydrazide

Chinese Name: Thiocarbohydrazide
Synonyms: two amino-thiourea; are two thiosemicarbazide; thio the formyl two hydrazine; sulfur Carbazide; sulfur Kabbah urea; Thiocarbohydrazide; thiocarbamoyl hydrazine; 1,3 – thiosemicarbazide
English name: Thiocarbohydrazide
Synonyms: AURORA 1561; CARBONOTHIOIC DIHYDRAZIDE; TCH; THIOCARBONOHYDRAZIDE; THIOCARBONYLDIHYDRAZIDE; THIOCARBAZIDE; THIOCARBOHYDRAZIDE; THIOCARBOHYDRAZIDE, the FOR ELECTRON MICROSC OPY
CAS No.: 2231-57-4
MF: CH6N4S
Molecular Weight: 106.15
Chemical properties
This product is a white crystalline solid, industrial products, slightly gray, mp171 ° C (decomposition), and insoluble in ether, insoluble in ethanol, soluble in dilute acid, dilute alkali, soluble in water, slightly soluble in ice water.
Use
Thiocarbohydrazide intermediate of the herbicide metribuzin.
Widely used in organic synthesis, is the important raw materials for efficient broad-spectrum herbicide metribuzin
Production methods
Preparation carbon disulfide to join the reactor, cooling, stirring dropwise hydrazine hydrate, and then heating from hydrogen sulfide gas absorption into sodium sulfide, hydrogen sulfide with alkali, the reaction mixture was cooled, crystallization, filtration, washing the filtrate for the mother liquor recycle, washing the filter cake is finished.
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