Description

4-Pregnene-17-A-20-B-21-Triol-*3-11-Dion E is a high-purity steroid derivative and a key synthetic intermediate in the production of more complex corticosteroid molecules. Its precise chemical structure makes it a critical building block for pharmaceutical research and development, particularly in the synthesis of anti-inflammatory agents. This compound is essential for manufacturers and R&D laboratories in the pharmaceutical and fine chemical sectors seeking reliable, high-quality raw materials for advanced synthesis.

Application

• Pharmaceutical Intermediate: A crucial precursor in the multi-step synthesis of potent corticosteroid drugs, including hydrocortisone and its derivatives.
• Research & Development: Used in academic and industrial laboratories for studying steroid metabolism, receptor binding, and developing novel therapeutic agents.
• Fine Chemical Synthesis: Serves as a specialized starting material for creating custom steroid analogs and other high-value, complex organic molecules.
• Reference Standard: Employed as an analytical standard in quality control laboratories for method development and impurity profiling of related steroid products.

Basic Information

Product Name	4-Pregnene-17-A-20-B-21-Triol-*3-11-Dion E
CAS No.	116-59-6
Molecular Formula	C21H30O5
Molecular Weight	362.46 g/mol
Synonyms	11-Deoxycortisol; 17α,21-Dihydroxypregn-4-ene-3,20-dione; Reichstein's Substance S; Cortodoxone; 17-Hydroxy-11-deoxycorticosterone; 11-Deoxy-17-hydroxycorticosterone; Pregn-4-ene-17α,21-diol-3,20-dione
EINECS	204-150-5

Quality Control

Our 4-Pregnene-17-A-20-B-21-Triol-*3-11-Dion E is manufactured under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the stringent requirements for pharmaceutical intermediates. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting compliance with agreed specifications.

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 compound is light-sensitive and easily oxidized; for long-term storage, consider keeping under an inert atmosphere such as nitrogen or argon to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 0.5%

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