Name: chlorfenuron

Commodity name: Pyridoxine, Ureakinase, KT-30, CPPU, 4PU-30, Steyou

Chemical name: N-(2-chloro-4-pyridyl)-N-phenylurea, 1-(2-chloro-4-pyridine)-3-phenylurea

CAS number: 68157-60-8

Molecular weight: 247.68

Physical and chemical properties:

The pure product is white flaky crystal, the relative molecular weight is 247.7, insoluble in water, the solubility in water is 0.11g/L (20℃), and it is easily soluble in ethanol, methanol, dimethyl sulfoxide, acetone and other organic solutions. The melting point is about 170℃, it is stable under the conditions of heat, ultraviolet light, acid and alkali, and it is resistant to storage. There is a faint pyridine smell.

Toxicity: According to the classification standard of pesticide toxicity in my country, chlorfenuron is a low-toxicity plant growth regulator. There is no adverse effect on humans and animals. The acute oral LD50 of raw white rats is 4918 mg/Kg, the LD50 of quail is more than 2250 mg/Kg; the acute skin LD50 of rabbits is more than 2000 mg/Kg, the LC50 of rainbow trout (96h) is 9.2 mg/Kg, water lice LC50 (48h) was 8.0mg/Kg.

Category: Plant Growth Promoter

Features of chlorfenuron:

Chlorfenuron is a new type of plant growth regulator. It has a highly active phenylurea mitogen substance, which can affect the development of plant buds, accelerate cell mitosis, promote the horizontal and vertical growth of organs, and promote cell enlargement and differentiation. , to promote fruit enlargement, prevent the fall of fruit and flowers, and increase yield. Delay leaf senescence, keep green for a long time, strengthen chlorophyll synthesis, improve photosynthesis, and promote leaf color to deepen and turn green. Breaking the advantages, promoting the germination of lateral buds, can penetrate the differentiation of buds, promote the formation of lateral branches, increase the number of branches, increase the number of flowers, and improve the fertility of pollen, thereby increasing the number of fruits and increasing yield. Improve crop quality and improve commerciality. Induce parthenocarpy, stimulate ovary enlargement, prevent flower and fruit drop, promote protein synthesis, increase sugar content, etc.