24-Epibrassinolide/Brassinolide CAS 72962-43-7/78821-43-9

CBNumber: CB5361274

Molecular Formula: C28H48O6

Formula Weight: 480.68

Product Name: Brassinolide             CAS Number: 72962-43-7/78821-43-9                Purity: 90%

Basic Info

PD No.:


Other Names:

Brassinolide BR/24-Epibrassinolide






Plant Growth Regulator

Model Number:



Agrochemical Plant Growth Regulator


Dry Place


Water Soluble


Increase Production


CAS No.:




Place of Origin:

Shandong, China



Brand Name:

Zhishang Chemical

Product name:

Brassinolide BR


White Yellow Powder


90%TC 0.01%SP 0.15%SP 0.2%SP 0.1%SP

Shelf Life:

2~3 Years


Brassinolide MSDS; Brassinolide COA



Product Categories:

Steriod;Bio-Pesticide;Steroids & Hormones – 13C & 2H;PLANT GROWTH REGULATOR;Intermediates & Fine Chemicals;Pharmaceuticals;Steroids

Chemical Properties:

Brassinolide is a white crystal with a melting point of 256~258℃ and a solubility of 5 mg/kg in water. It is soluble in various organic solvents such as methanol, ethanol, chloroform, acetone and tetrahydrofuran. It is a low-toxic plant growth regulator. The toxicity of humans and animals is low, and there is no report of human poisoning.

Brassinolide Uses:
  1. Brassinolide is a broad-spectrum and high-efficiency plant growth regulator, which has a significant effect on increasing the production of various cash crops and can effectively regulate all growth links of plants.
  2. Plant growth regulators, steroid compounds widely used in a variety of crops.
Brassinolide Use in Agriculture:

Brassinolide, also known as brassinolide, Yifengsu, and Tianfengsu, is a new type of sterol endogenous plant hormone, which can significantly increase plant vegetative growth and promote fertilization at very low concentrations. Brassinolide is recognized internationally as a highly effective, broad-spectrum, non-toxic plant growth regulator with the highest activity. It has the dual functions of dividing and extending plant cells, promoting the development of roots, enhancing photosynthesis, and increasing the chlorophyll content of crops. Promote the effective absorption of fertilizers by crops, assist the good growth of the disadvantaged parts of crops, promote roots and strong seedlings, preserve flowers and fruits; improve the resistance of crops to cold, drought, and salt-alkali resistance, and significantly reduce the occurrence of diseases; It can alleviate the occurrence of phytotoxicity. After the phytotoxicity occurs, it can be used to detoxify, so that the crop can quickly resume growth, and can eliminate disease spots; brassinolide can also significantly increase the yield and improve the quality of the crop.

The research on the application of brassinolide in agriculture has been carried out for nearly ten years, and the result has attracted widespread attention from all over the world.

  1. Wheat: After being treated with brassinolide, there is a significant increase in yield. The brassinolide of 0.05~0.5mg/L can significantly promote the root system (including root length and root number) and plant height of wheat seed soaking for 24 hours. The effect of foliar spraying at this concentration during the tillering stage was obvious. Two weeks after the treatment, the chlorophyll content of the flag leaves was higher than that of the control, and the number of ears, ear weight, and 1000-grain weight increased significantly, and the yield was generally increased by 7% to 15%. The wheat seedlings treated with brassinolide are more resistant to winter low temperature. In addition, the functional leaves of the lower part of the plant grow well, which increases the resistance of wheat and reduces the chance of infection by diseases such as bacterial wilt.
  2. Maize: Kernel abortion (i.e. baldness) at the top of the ear of corn is an important factor that affects the increase in yield. In corn fields, spraying the whole plant with 5ml of 0.01% brassinolide EC plus 50L of 0.01mg/L brassinolide with water can significantly reduce the abortion rate of the top kernel of the corn ear and increase the yield by about 20%. The effect of treatment before tasseling is better than spraying after spinning. The increase in the frequency of spraying corn ears can reduce the abortion rate, but the effect is not as good as spraying the whole plant. After the treatment, the leaf color of the corn plant becomes darker, the leaves become thicker, the dry leaf weight and chlorophyll content increase, and the photosynthesis rate increases. The activity of the grain at the top of the ear is increased (ie, the relative conductivity is decreased). In addition, the post-spinning treatment also has the effect of increasing the thousand-grain weight. Shanghai Institute of Plant Physiology, Chinese Academy of Sciences, Shanghai Institute of Materia Medica, and Japanese scientists conducted BR production increase experiments. The results show that the treatment of wheat with 0.01mg/L epibrassinolide can increase the seed setting rate and thousand-grain weight of wheat ears, thereby increasing the wheat by 10%. Treating corn ears with the same concentration can increase corn yield by 9.8% to 18.4%.
Storage condition: Cool Dry Place
Long term storage: Sealed in dry,2-8°C.

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Additive , Chemical Auxiliary & Catalyst , Organic Chemicals
  • Products/Service: Organic Intermediate,Inorganic Chemistry, APIs, Dyestuffs And Pigments, Fragrance And Spices, Food Additives
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

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