PGR
Brassinolide (24-Epibrassinolide) 0.1% SP
24-Epibrassinolide 0.1% SP grade for formulators; bundle into SL/SP nutrition lines
Brassinolide (24-Epibrassinolide) 0.1% SP is a ready-to-dilute soluble-powder brassinosteroid PGR: it relieves crop stress and drives recovery, enhances pollination and fruit set, and promotes fruit sizing and coloring. Ultra-low rates — 0.02–0.1 mg/L. Also ideal for formulators: blend into macro/micronutrient liquid fertilizers or premium amino acid and fulvic acid biostimulant lines. MOQ 25kg; lead time about 10 working days to Shanghai port; OEM and batch COA available; 24-month shelf life.
Technical specifications
- Product Name
- Brassinolide
- Other Names
- BR, Brassinosteroid, 24-Epibrassinolide
- Appearance
- White Fine Powder
- Assay
- 0.1%
- CAS No.
- 78821-43-9
- Molecular formula
- C28H48O6
- Molecular weight
- 480.686
Package
25kg drum
Key benefits
- High Bioactivity Sixth-Class Plant Hormone: As an environmentally friendly brassinosteroid biostimulant, Brassinolide 0.1% SP acts at ultralow concentrations to stimulate plant cell division, elongation, and physiological metabolic active transport.
- Rapid Phytotoxicity Relief & Crop Recovery: Triggers plant defense systems and accelerates metabolic detoxification, enabling fast physiological recovery from herbicide, fungicide, or insecticide phytotoxicity burn.
- Broad-Spectrum Abiotic Stress Resistance: Enhances protective enzyme activity (SOD, POD, CAT) and proline accumulation, significantly increasing crop resistance to drought, cold snaps, heat shock, and soil salinity.
- Synergistic Tank-Mix Enhancement: Functions as a high-efficiency bio-enhancer when co-applied with foliar fertilizers (like amino acids, humic acid, or potassium dihydrogen phosphate) and pesticides, improving systemic absorption and efficacy.
- Yield Booster & Fruit Quality Improvement: Promotes pollen tube growth, improves fertilization rates, enhances chlorophyll retention, and accelerates sugar transport for uniform fruit sizing, better coloration, and yield increase.
Suggested dosage & application
For formulators
This 0.1% SP is ready to dilute directly in the spray tank, and is also ideal for blending into macro/micronutrient liquid fertilizers or premium amino acid and fulvic acid biostimulant lines to create "anti-stress + nutrition" crop programs. Keep a neutral to slightly acidic pH in liquid formulations. Every shipment includes a batch COA.
For direct field use (apply as a uniform fine mist)
Immediately after frost, drought or pesticide injury: 0.02–0.05 mg/L. At budding and early flowering: 0.05–0.1 mg/L. At early fruit expansion: 0.05 mg/L.
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Frequently asked questions
01What is the CAS number of your brassinolide?
Our product is 24-epibrassinolide, CAS 78821-43-9, supplied as a 0.1% SP (soluble powder) formulation with a batch COA for every shipment.
02What does brassinolide do, and at what rates is it used?
Brassinolide relieves crop stress and drives recovery, enhances pollination and fruit set, and promotes fruit sizing and coloring. Typical rates: 0.02–0.05 mg/L immediately after frost, drought or pesticide injury; 0.05–0.1 mg/L at budding and early flowering; 0.05 mg/L at early fruit expansion. Apply as a uniform fine mist for even coverage.
03Is this a ready-to-use product or a technical-grade material?
This is a 0.1% SP formulation — ready to dilute directly in the spray tank. It is also ideal for formulators: blend into macro/micronutrient liquid fertilizers or premium amino acid and fulvic acid biostimulant lines to create "anti-stress + nutrition" crop programs. Keep a neutral to slightly acidic pH in liquid formulations.
0424-Epibrassinolide vs natural brassinolide — what is the difference?
24-Epibrassinolide (CAS 78821-43-9) shows about 10%–30% of the biological activity of natural brassinolide (CAS 72962-43-7), but in agricultural practice a slightly higher dosage achieves comparable visible results — at a much better cost-to-effect ratio, which is why it is the industry-standard commercial form.
05What is the MOQ, lead time and shelf life?
MOQ is 25 kg. Typical lead time is about 10 working days to Shanghai port; OEM packaging and batch COA are available. Shelf life is 24 months in the original sealed packaging.
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