Description

17Beta-(Cyclopentyloxy)Estra-1,3,5(10)-Trien-3-Ol is a high-purity steroid derivative and a key pharmaceutical intermediate. This compound is valued for its role in the synthesis of advanced therapeutic agents, offering researchers and manufacturers a reliable building block for complex molecular development. It is primarily utilized by the pharmaceutical, biotechnology, and advanced chemical synthesis sectors for research and development, process scale-up, and commercial production.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of steroidal drugs and hormone-based therapies.
• Research & Development: Used in academic and industrial laboratories for pharmacological studies and new chemical entity (NCE) discovery.
• Process Chemistry: Serves as a key starting material (KSM) or advanced intermediate in scalable API (Active Pharmaceutical Ingredient) manufacturing processes.
• Biochemical Research: Employed in studies investigating steroid receptor interactions and metabolic pathways.
• Reference Standard: Used as a high-purity analytical standard for quality control and method validation in regulatory testing.

Basic Information

Product Name	17Beta-(Cyclopentyloxy)Estra-1,3,5(10)-Trien-3-Ol
CAS No.	85391-72-6
Molecular Formula	C23H32O2
Molecular Weight	340.50 g/mol
Synonyms	17β-(Cyclopentyloxy)estra-1,3,5(10)-trien-3-ol; 3-Hydroxy-17β-(cyclopentyloxy)estra-1,3,5(10)-triene; Estra-1,3,5(10)-trien-3-ol, 17-(cyclopentyloxy)-, (17β)-; 17β-Cyclopentyloxy-estra-1,3,5(10)-trien-3-ol
EINECS	Contact for details

Quality Control

Our 17Beta-(Cyclopentyloxy)Estra-1,3,5(10)-Trien-3-Ol is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets stringent specifications for pharmaceutical intermediates. Certificates of Analysis (COA) documenting all test results are provided and can be tailored to meet specific customer or regulatory requirements.

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). This product is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed after opening to minimize exposure to atmospheric moisture and light.

Specification

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

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