Description

(25R)-22α,26-Epithiofurost-5-En-3β-Ol CAS NO 55028-76-7 is a high-purity, specialized steroidal sapogenin derivative characterized by its unique epithiofurostane structure. This compound is of significant commercial and research interest as a critical intermediate in the synthesis of novel bioactive molecules, particularly in the pharmaceutical sector. It is primarily sought by research institutions and manufacturers engaged in the development of steroidal drugs, hormone analogs, and other fine chemical products requiring a sophisticated steroidal backbone.

Application

• Pharmaceutical Intermediate: A key building block for the synthesis of novel steroidal drugs and hormone-based therapeutics.
• Research & Development: Used in academic and industrial R&D for studying structure-activity relationships (SAR) and developing new bioactive compounds.
• Fine Chemical Synthesis: Serves as a precursor in multi-step organic syntheses to create complex steroidal architectures.
• Biochemical Studies: Employed as a reference standard or probe in biochemical assays and metabolic pathway investigations.
• Agrochemical Development: Potential use as an intermediate in the research of plant growth regulators or other agrochemicals with steroidal activity.

Basic Information

Product Name	(25R)-22α,26-Epithiofurost-5-En-3β-Ol
CAS No.	55028-76-7
Molecular Formula	C₂₇H₄₂O₂S
Molecular Weight	430.69 g/mol
Synonyms	(25R)-22α,26-Epithio-5α-furostane-3β-ol; 22α,26-Epithiofurost-5-en-3β-ol, (25R)-; 22,26-Epithio-5α-cholestane-3β,26-diol; 22α,26-Epithio-5α-cholestane-3β,26-diol; (25R)-22α,26-Epithio-5α-furostan-3β-ol; Furostane epithio derivative; Steroidal sapogenin epithio intermediate
EINECS	Contact for details

Quality Control

Our (25R)-22α,26-Epithiofurost-5-En-3β-Ol is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all relevant specifications. Our quality system is designed to meet the stringent requirements of pharmaceutical R&D and fine chemical synthesis.

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 light-sensitive; therefore, containers must be kept tightly sealed in a dry environment and away from direct light exposure to maintain stability and purity.

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%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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