Description

Homobrassinolide is a highly active, naturally occurring plant growth regulator belonging to the brassinosteroid class of phytohormones. It is valued for its ability to significantly enhance crop stress tolerance, promote growth, and improve yield and quality at very low concentrations. This compound is essential for agricultural researchers, formulators developing advanced biostimulants, and producers in high-value horticulture and broad-acre farming seeking to optimize plant performance and resilience.

Application

• Plant Biostimulant Formulations: A key active ingredient in liquid concentrates, soluble powders, and granules designed to enhance crop vigor, flowering, and fruit set.
• Stress Mitigation: Applied to improve plant recovery and performance under abiotic stresses such as drought, salinity, temperature extremes, and heavy metal toxicity.
• Yield Enhancement: Used in foliar sprays or seed treatments for crops like fruits, vegetables, cereals, and cotton to increase biomass and harvestable yield.
• Seed Germination & Seedling Vigor: Promotes uniform germination and stronger early seedling establishment.
• Post-Harvest Quality Improvement: Can help maintain freshness and reduce spoilage in certain fruits and vegetables.
• Research & Development: Serves as a critical reference standard and active component in agricultural and plant physiology research.

Basic Information

Product Name	Homobrassinolide
CAS No.	74174-44-0
Molecular Formula	C₂₉H₅₀O₆
Molecular Weight	494.71 g/mol
Synonyms	(22R,23R,24S)-2α,3α,22,23-Tetrahydroxy-24-methyl-B-homo-7-oxa-5α-cholestan-6-one; 2α,3α,22,23-Tetrahydroxy-24-methyl-B-homo-7-oxa-5α-cholestan-6-one; HBR; High-active Brassinolide; Homobrassinolide BR; Homobrassinolide Technical
EINECS	Contact for details

Quality Control

Our Homobrassinolide is produced under strict quality management protocols. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide Certificates of Analysis (COA) with detailed chromatographic and spectroscopic data upon request, supporting your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. This material is hygroscopic (moisture-sensitive) and must be kept in a dry environment to maintain stability and potency.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 90.0%
Loss on Drying	≤ 2.0%
Related Substances (HPLC)	Total impurities ≤ 5.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.