What is Brassinolide? (CAS No. 72962-43-7): The Ultimate Guide to the 6th Major Plant Hormone
In modern agriculture, boosting crop yield and stress resistance is more critical than ever. Among various biostimulants and plant growth regulators (PGRs), Brassinolides (CAS No. 72962-43-7) stand out as one of the most eco-friendly and high-efficiency broad-spectrum solutions available.
Officially recognized as the 6th class of essential plant hormones (alongside auxins, gibberellins, cytokinins, abscisic acid, and ethylene), Brassinolides play a fundamental role in regulating plant growth, seed germination, and environmental stress tolerance.
In this guide, we dive deep into the chemical background, key mechanisms, agricultural benefits, and practical applications of Brassinolide (CAS No. 72962-43-7).
Technical Specifications & Chemical Profile
How Does Brassinolide (CAS 72962-43-7) Work?
Brassinolides interact directly with plant cell surface receptors, triggering signal transduction pathways that affect nuclear gene expression. Unlike traditional PGRs that only act on specific organs, Brassinolide functions systemically throughout the plant.
Key Mechanisms of Action:
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1Cell Division & Elongation: It stimulates both cell division and longitudinal expansion, resulting in stronger stems and larger leaves.
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2Photosynthesis Enhancement: It increases chlorophyll content and enhances enzyme activity, accelerating light absorption and carbohydrate accumulation.
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3Pollen Tube Growth: It promotes pollen tube elongation, substantially improving seed setting rates and fruit set percentage.
1. Increases Crop Yield and Quality
By boosting physiological activity, Brassinolides promote uniform crop development. Fruits, grains, and vegetables treated with Brassinolide demonstrate better coloration, higher sugar content, improved storage life, and increased overall yield per acre.
2. Superior Stress Resistance (Anti-Stress Biostimulant)
Whether crops face drought, low temperatures, salinity, or waterlogging, Brassinolide activates defensive antioxidant enzyme systems (such as SOD and POD). This significantly reduces cellular damage caused by environmental stressors.
3. Phytotoxicity Recovery
One of the most valuable properties of Brassinolide is its ability to relieve plant injury caused by chemical pesticides, herbicides, or fungicide over-application. It speeds up the metabolism of harmful chemical residues within plant tissues.
4. High Efficiency at Ultra-Low Dosage
Unlike conventional fertilizers, Brassinolides are bioactive at extremely low concentrations (ppm or ppb level), making them a cost-effective choice for agricultural formulations.
Application Scope Across Various Crops
| Crop Category | Recommended Stage | Expected Outcome |
|---|---|---|
| Field Crops (Rice, Wheat, Corn) | Seed soaking, Tillering, Booting | Higher germination rate, filled grains, lodging resistance |
| Cash Crops (Cotton, Sugarcane) | Seed seedling stage, Early flowering | Enhanced vegetative growth, increased fiber strength |
| Fruit Trees (Citrus, Apple, Grape) | Pre-flowering, Young fruit expansion | Improved fruit set, reduced fruit drop, uniform size |
| Vegetables (Tomato, Cucumber, Pepper) | Seedling stage, Fruiting phase | Accelerated leaf development, enhanced disease resistance |
Formulating & Mixing Guidelines
Brassinolide (CAS No. 72962-43-7) is highly versatile and works exceptionally well in combination formulations:
- With Foliar Fertilizers: Synergizes nutrient absorption efficiency.
- With Fungicides/Insecticides: Improves pesticide efficacy while reducing crop stress.
- With Gibberellins / Auxins: Provides complementary effects for fruit development and vegetative expansion.
Why Source Brassinolide from Shenzhen Soyoung?
At Shenzhen Soyoung Tech Material Co., Ltd., we deliver premium-grade active raw materials backed by rigorous quality assurance:
- Consistent Purity & Quality: Produced under strict QC standards with COA, MSDS, and HPLC testing support.
- Stable Global Supply: Reliable batch-to-batch consistency for large-scale agricultural chemical manufacturers and formulators.
- Technical Support: Dedicated professional assistance for custom formulation inquiries and international shipping compliance.
Request a Quote & Sample Today
Looking for high-purity Brassinolides (CAS No. 72962-43-7) or other plant growth regulators for your supply chain?
Contact our technical sales team at Shenzhen Soyoung Tech Material Co., Ltd. today to receive complete specifications, certificate of analysis, and competitive pricing.