CAS NO.:51707-55-2

Chemical Name: 1-thiadiazole-3-(1,2,3,-thiadiazol-5-yl)thi  TDZ
Chemical Formula: C9H8N4OS

Molecular Weight: 217℃(decomposition)
Physical and Chemical Properties：
The pure product is a white, odorless, tasteless crystalline solid. The melting point is 217℃ (decomposition). The solubility at 25°C is (g/L): dimethyl sulfoxide>500, dimethylformamide>500, cyclohexanone 21.5, acetone 8, methanol 4.5, ethyl acetate 0.8, hexane 6, insoluble in Aliphatic and aromatic hydrocarbons, solubility in water is 31mg/L.

Function and Characteristics:

Thidiazuron is used as a defoliant in cotton cultivation. After being absorbed by the plant, it can promote the natural formation and detachment of the separation tissue between the petiole and the stem. It is a good defoliant.
1. After using thidiazuron, it can cause the cotton plant itself to produce abscisic acid and ethylene, which will lead to the formation of an abscission layer between the petiole and the cotton plant, causing the cotton leaves to fall off on their own.
2. Thidiazuron can quickly transfer nutrients to the young cotton bolls in the upper part of the plant while the leaves are still green, and the cotton plant will not die, achieving multi-effects of ripening, defoliation, increased yield, and increased quality.
3. Thidiazuron can make cotton ripen early, and cotton bolls will sprout relatively early and concentrated, increasing the proportion of cotton before frost. Cotton does not get caught in the shell, does not shed lint, does not fall off, increases fiber length and improves clothing content, which is conducive to mechanical and manual harvesting.
4. The efficacy of thidiazuron lasts for a long time, and the leaves will fall off when they are green, completely solving the problem of “withering but not falling”, reducing the pollution of leaves to machine-picked cotton, and improving the quality and efficiency of mechanized cotton picking operations. .
5. Thidiazuron can also reduce the damage caused by later pests.