Description

3-Methoxy-Estra-2,5(10)-Dien-17-Ol is a high-purity steroid derivative and a key synthetic intermediate in advanced pharmaceutical research and development. Its specific molecular structure makes it a valuable precursor for the synthesis of novel steroidal compounds with potential therapeutic applications. This product is essential for researchers and manufacturers in the pharmaceutical and fine chemical industries focusing on endocrinology, oncology, and metabolic disease research.

Application

• Pharmaceutical Intermediate: A critical building block for the synthesis of novel steroidal drugs and active pharmaceutical ingredients (APIs).
• Research & Development: Used in medicinal chemistry for structure-activity relationship (SAR) studies and the development of new therapeutic agents.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method validation in laboratory settings.
• Biochemical Research: Employed in studies investigating steroid hormone pathways, receptor binding, and metabolic processes.

Basic Information

Product Name	3-Methoxy-Estra-2,5(10)-Dien-17-Ol
CAS No.	101978-01-2
Molecular Formula	C19H26O2
Molecular Weight	286.41 g/mol
Synonyms	17β-Hydroxy-3-methoxyestra-2,5(10)-diene; 3-Methoxy-19-nor-17α-pregna-2,5(10)-dien-20-yn-17-ol; 3-Methoxyestra-2,5(10)-dien-17β-ol; 3-Methoxy-19-norpregna-2,5(10)-dien-20-yn-17-ol; Estra-2,5(10)-dien-17-ol, 3-methoxy-; 3-Methoxy-δ2,5(10)-estren-17β-ol
EINECS	Contact for details

Quality Control

Our 3-Methoxy-Estra-2,5(10)-Dien-17-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 the stringent requirements for pharmaceutical research. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and consistent quality.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Keep the container tightly sealed in a dry environment to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
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.