Description

22(S),23(S)-Homobrassinolide is a highly active, naturally occurring plant growth regulator belonging to the brassinosteroid class of phytohormones. This specific stereoisomer is valued for its superior bioactivity in promoting cell division, elongation, and stress resistance in a wide range of crops. It is an essential component for agricultural researchers, formulators, and manufacturers developing next-generation biostimulants and plant health products to enhance yield and crop quality under challenging environmental conditions.

Application

• Agricultural Biostimulants: A key active ingredient in foliar sprays and soil drenches to promote plant growth, increase biomass, and improve overall crop vigor.
• Stress Mitigation: Used to enhance plant tolerance to abiotic stresses such as drought, salinity, heat, and cold, helping to maintain yield under suboptimal conditions.
• Seed Treatment: Incorporated into seed coating formulations to improve germination rates, stimulate early seedling growth, and establish stronger root systems.
• Fruit Setting & Quality Improvement: Applied during flowering and fruit development stages to improve fruit set, reduce fruit drop, and enhance qualities like size, color, and sugar content.
• Research & Development: Serves as a critical reference standard and active compound in plant physiology research, agrochemical R&D, and the study of brassinosteroid signaling pathways.
• Hydroponics & Controlled Environment Agriculture (CEA): Utilized in nutrient solutions to optimize plant growth and development in soilless cultivation systems.

Basic Information

Product Name	22(S),23(S)-Homobrassinolide
CAS No.	80483-89-2
Molecular Formula	C₂₉H₅₀O₆
Molecular Weight	494.71 g/mol
Synonyms	Homobrassinolide; (22S,23S)-Homobrassinolide; 2α,3α,22S,23S-Tetrahydroxy-24S-methyl-B-homo-7-oxa-5α-cholestan-6-one; Brassinolide analog; Plant growth brassinosteroid; HBL
EINECS	Contact for details

Quality Control

Our 22(S),23(S)-Homobrassinolide is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets stringent specifications for research and formulation use. A Certificate of Analysis (COA) detailing batch-specific results is provided with every shipment to guarantee traceability and consistent quality.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C. The product is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to maintain stability and potency.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (HPLC/IR)	Conforms to reference standard
Assay (HPLC)	≥ 95.0%
Specific Rotation	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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