Description

(3β,17E)-Pregna-5,17(20)-Dien-3-Ol CAS NO 1159-25-7 is a high-purity steroid intermediate of significant importance in pharmaceutical synthesis. This compound serves as a crucial building block for the development of active pharmaceutical ingredients (APIs) and other fine chemicals. It is primarily required by research institutions and manufacturers in the pharmaceutical, biotechnology, and life sciences sectors for advanced synthetic applications.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex steroid-based active pharmaceutical ingredients (APIs).
• Research & Development: Used in medicinal chemistry for the discovery and development of new therapeutic agents.
• Biochemical Research: Serves as a reference standard or starting material in metabolic pathway studies and hormone research.
• Fine Chemical Synthesis: Employed in the multi-step synthesis of specialized steroids and related organic compounds.

Basic Information

Product Name	(3β,17E)-Pregna-5,17(20)-Dien-3-Ol
CAS No.	1159-25-7
Molecular Formula	C21H30O
Molecular Weight	298.46 g/mol
Synonyms	Pregna-5,17(20)-dien-3β-ol; (3β,17E)-Pregna-5,17(20)-dien-3-ol; 3β-Hydroxypregna-5,17(20)-diene; NSC 10483; 17(20)-Dehydroprogesterone alcohol; 3β-Hydroxy-17(20)-dehydropregn-5-ene
EINECS	Contact for details

Quality Control

Our (3β,17E)-Pregna-5,17(20)-Dien-3-Ol is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the stringent requirements for pharmaceutical intermediate use. Certificates of Analysis (COA) are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%

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