Description

5-B-Pregnane-3-A-21-Diol-11-20-Dione is a high-purity steroid derivative and a key synthetic intermediate in organic chemistry. This compound is valued for its specific molecular framework, which serves as a crucial building block in the research and development of novel pharmaceutical agents. It is primarily utilized by researchers and manufacturers in the pharmaceutical, biotechnology, and fine chemical sectors for advanced synthesis projects.

Application

• Pharmaceutical Intermediate: A critical precursor in the multi-step synthesis of complex steroid-based active pharmaceutical ingredients (APIs).
• Biochemical Research: Used as a reference standard or starting material in metabolic pathway studies and hormone research.
• Fine Chemical Synthesis: Serves as a specialized building block for creating novel chemical entities in medicinal chemistry and drug discovery programs.
• Academic & R&D: Employed in university and institutional laboratories for investigating new synthetic methodologies and compound libraries.

Basic Information

Product Name	5-B-Pregnane-3-A-21-Diol-11-20-Dione
CAS No.	566-03-0
Molecular Formula	C21H32O4
Molecular Weight	348.48 g/mol
Synonyms	5β-Pregnane-3α,21-diol-11,20-dione; 3α,21-Dihydroxy-5β-pregnane-11,20-dione; 11,20-Dioxo-5β-pregnan-3α,21-diol; 5β-Pregnan-3α,21-diol-11,20-dione; 21-Hydroxy-5β-pregnane-3α,11,20-trione (tautomer); 5-β-pregnane-3-alpha,21-diol-11,20-dione; 5β-Pregnane-3α,21-diol-11,20-dione; 5-B-Pregnane-3-A-21-Diol-11-20-Dione
EINECS	Contact for details

Quality Control

Our 5-B-Pregnane-3-A-21-Diol-11-20-Dione is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity suitable for research and synthesis. We adhere to cGMP principles where applicable. Comprehensive analytical testing, including HPLC for assay and purity, is performed. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

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) and must be kept in a dry environment to prevent degradation. For long-term storage, consider desiccants or inert atmosphere.

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%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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