Description

Amarasterone B CAS NO 21132-15-0 is a specific steroidal brassinosteroid analog, a class of plant hormones known for their potent growth-regulating properties. This high-purity compound is valued for its role in advanced agricultural research and plant physiology studies, enabling the development of next-generation plant growth regulators. It is essential for researchers and formulators in the agrochemical, biotechnology, and academic sectors seeking to enhance crop yield, stress tolerance, and plant development.

Application

• Agrochemical Research & Development: As a key reference standard and active ingredient in the formulation of novel plant growth regulators (PGRs) and bio-stimulants.
• Plant Physiology Studies: Used in laboratory experiments to investigate brassinosteroid signaling pathways, cell elongation, and plant developmental processes.
• Crop Enhancement Trials: Applied in controlled studies to evaluate effects on improving crop yield, quality, and resilience against abiotic stresses like drought or salinity.
• Biotechnology Applications: Serves as a critical component in tissue culture media and genetic engineering research aimed at modifying plant hormone responses.
• High-Purity Analytical Standard: Utilized as a certified reference material (CRM) for the accurate quantification of brassinosteroids in complex matrices via HPLC, LC-MS, or GC-MS.

Basic Information

Product Name	Amarasterone B
CAS No.	21132-15-0
Molecular Formula	C₂₉H₄₈O₈
Molecular Weight	524.7 g/mol
Synonyms	(22R,23R,24S)-22,23-Dihydroxy-24-methyl-5α-cholestan-3β,6β-dione; 22,23-Dihydroxy-24-methyl-5α-cholestane-3,6-dione; 24-Methylcastasterone; Brassinolide analog; Plant growth steroid; BR analog
EINECS	Contact for details

Quality Control

Our Amarasterone B is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (NMR, MS). We provide a detailed Certificate of Analysis (COA) with every shipment, ensuring traceability and compliance with research-grade specifications. Certificates are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to prevent degradation from atmospheric moisture. For long-term storage, consider desiccants or an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
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.