Description

(20S)-17,20-[(Phenylboranediyl)Bis(Oxy)]-5β-Pregnan-3α-Ol CAS NO 18929-38-9 is a high-purity, synthetic steroid derivative characterized by a unique phenylboranediyl bis(oxy) functional group. This compound serves as a critical advanced intermediate in the research and development of novel pharmaceutical agents, particularly in the fields of endocrinology and oncology. It is primarily required by pharmaceutical R&D laboratories and fine chemical manufacturers engaged in the synthesis of complex bioactive molecules.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel steroid-based therapeutics and investigational drugs.
• Biochemical Research: Used as a reference standard or probe in studying steroid hormone receptor interactions and metabolic pathways.
• Process Chemistry: Serves as a pivotal intermediate in multi-step synthetic routes for active pharmaceutical ingredients (APIs).
• Academic Research: Employed in university and institutional labs for methodological development in organic and medicinal chemistry.
• Custom Synthesis: A starting material for the contract manufacturing of specialized, high-value target molecules.

Basic Information

Product Name	(20S)-17,20-[(Phenylboranediyl)Bis(Oxy)]-5β-Pregnan-3α-Ol
CAS No.	18929-38-9
Molecular Formula	C28H41BO3
Molecular Weight	436.44 g/mol
Synonyms	(20S)-17,20-[(Phenylboranediyl)bis(oxy)]-5β-pregnan-3α-ol; 5β-Pregnan-3α-ol, 17,20-[(phenylboranediyl)bis(oxy)]-, (20S)-; 18929-38-9; 17,20-[(Phenylboranediyl)bis(oxy)]-5β-pregnan-3α-ol (20S-isomer); Pregnan-3α-ol derivative with phenylboronate ester; Steroid phenylboronate intermediate
EINECS	Contact for details

Quality Control

Our (20S)-17,20-[(Phenylboranediyl)Bis(Oxy)]-5β-Pregnan-3α-Ol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis to ensure compliance with ICH guidelines. A comprehensive Certificate of Analysis (COA) detailing all test results and specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C) in a dry environment. Due to its sensitivity to light and oxidation, prolonged exposure to air or light should be avoided.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Residual Solvents (GC)	Complies with ICH Q3C

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