Plant Growth Regulator Technical
Plant Growth Regulator Technical

Paclobutrazol 90%-95% TC

Other names: PP333, Chlorobutamol

Chemical Name: (2RS,3RS)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pentan-3-ol

CAS number: 76738-62-0

Molecular weight: 293.79

Physical and Chemical Properties: The original drug is a white solid. Melting point: 165-166°C, vapor pressure: 0.001 mPa at 20°C. Solubility at 20°C: 26 mg/L in water, 110 in acetone, 180 in cyclohexanone, and 150 in methanol. Storage at 20°C: over 2 years.

Uses: Paclobutrazol is a chemical agent. When diluted with water and sprayed on seedlings, it inhibits dominant apical growth and promotes the growth of lateral buds (tillers). The resulting seedlings appear short, stocky, and have a well-developed root system. This facilitates cultivation and allows for delayed transplanting.

  • Product Details
  • Product parameters
    Physical and chemical properties Density 1.2±0.1 g/cm3
    Boiling point 460.9±55.0 ℃ at 760 mmHg
    Melting point 165-166℃
    Molecular formula C15H20ClN3O
    Molecular weight 293.792
    Flash point 232.6±31.5 ℃
    Exact mass 293.129486
    PSA 50.94
    LogP 2.99
    Appearance Greyish-white to beige solid
    Vapour pressure 0.0±1.2 mmHg at 25℃
    Refractive index 1.58
    Storage conditions Store in a tightly closed container in a cool, dry place. Keep away from oxidising agents.
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ABOUT LIMIN CHEMICAL
Yancheng Limin Chemical Co., Ltd.
Yancheng Limin Chemical Co., Ltd.
The story of Limin Group began more than three decades ago, on the fertile soil of China. It was an era calling for agricultural modernization, when food security became a national imperative. Our founding was no coincidence—it was a response to the times: harnessing technology to protect crops, and responsibility to safeguard the granary. From a small team of dozens to a global enterprise spanning five continents, we have always believed that agriculture is not merely an industry—it is the foundation of human survival.
Our R&D centers in China, Europe, South America, Southeast Asia, and Africa employ over 200 scientists, tackling challenges in green synthesis, microencapsulation, and biological pest control. With more than 150 core patents, Limin commands a strong voice in the global agrochemical sector, and our involvement in FAO/WHO international pesticide standards has brought "Chinese innovation" to the center of the world stage.
Today, Limin products serve over 80 countries, protecting more than 6.6 million hectares of farmland. We are not just providers of crop protection—we are guardians of global food security. From the arid lands of Africa, to the highlands of South America, to the rice fields of Southeast Asia—our footprints and commitments are everywhere.
  • 40

    Year of Industry Experience

  • 100+

    Varieties of Pesticides

  • 150+

    Core Patents

  • 80+

    Products to Serve Countries

CERTIFICATES
The Honor
We Have Received.

We have independent intellectual property rights of efficient green pesticide new products, by the State Intellectual Property Office awarded the "national intellectual property advantage enterprise"

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