Description

Thymosterin B CAS NO 74191-22-3 is a high-purity, synthetic steroid derivative of significant interest in advanced pharmaceutical research and development. This compound serves as a critical intermediate for the synthesis of novel therapeutic agents, offering researchers a reliable and well-characterized building block. It is primarily utilized by R&D teams in the pharmaceutical, biotechnology, and fine chemical sectors focused on developing new steroid-based medications and exploring endocrine pathways.

Application

• Pharmaceutical Intermediate: A key starting material or intermediate in the multi-step synthesis of novel steroid-based active pharmaceutical ingredients (APIs).
• Biochemical Research: Used as a reference standard or probe in laboratory studies investigating steroid hormone receptors, metabolism, and signaling pathways.
• Fine Chemical Synthesis: Employed in custom synthesis and process development for creating specialized steroid derivatives with targeted biological activity.
• Academic Research: Utilized in university and institutional labs for fundamental studies in medicinal chemistry, pharmacology, and endocrinology.

Basic Information

Product Name	Thymosterin B
CAS No.	74191-22-3
Molecular Formula	C21H30O2
Molecular Weight	314.46 g/mol
Synonyms	Thymosterin B; 3β-Hydroxy-5α-pregnan-20-one; 5α-Pregnan-3β-ol-20-one; 20-Oxo-5α-pregnan-3β-ol; Pregn-5α-ene-3β,20β-diol (related); 3β-Hydroxy-5α-pregnan-20-one; 5α-Dihydroprogesterone derivative
EINECS	Contact for details

Quality Control

Our Thymosterin B is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity suitable for research applications. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting all critical quality parameters.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive and should be stored away from light. Keep the container tightly sealed in a dry environment to minimize exposure to moisture.

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%
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.