Description

3Alpha,11B-Dihydroxy-5B-Pregnan-20-One is a high-purity steroid intermediate of significant importance in pharmaceutical synthesis. This compound serves as a critical building block for the development of advanced steroid-based therapeutics and research compounds. It is primarily required by pharmaceutical R&D laboratories, fine chemical manufacturers, and academic institutions engaged in steroid chemistry and drug discovery.

Application

• Pharmaceutical Intermediate: A key precursor in the multi-step synthesis of complex steroid hormones and active pharmaceutical ingredients (APIs).
• Research & Development: Used as a reference standard and starting material in medicinal chemistry for exploring new therapeutic agents.
• Biochemical Research: Employed in studies investigating steroid metabolism, receptor binding, and enzymatic pathways.
• Fine Chemical Synthesis: Serves as a versatile chiral building block for creating specialized steroid derivatives and analogs.

Basic Information

Product Name	3Alpha,11B-Dihydroxy-5B-Pregnan-20-One
CAS No.	565-92-4
Molecular Formula	C21H34O3
Molecular Weight	334.50 g/mol
Synonyms	3α,11β-Dihydroxy-5β-pregnan-20-one; 5β-Pregnane-3α,11β-diol-20-one; 20-Oxo-5β-pregnane-3α,11β-diol; 3α,11β-Dihydroxy-5β-pregnan-20-one; 11β,3α-Dihydroxy-5β-pregnan-20-one; 5β-Pregnan-3α,11β-diol-20-one
EINECS	Contact for details

Quality Control

Our 3Alpha,11B-Dihydroxy-5B-Pregnan-20-One is manufactured under strict quality control protocols to ensure high purity and batch-to-batch consistency, suitable for demanding synthetic applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to cGMP principles where applicable, and specifications can be aligned with client requirements for pharmaceutical development.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 1.0%

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