Description

(17R)-3-Methoxy-19-Norpregna-1,3,5(10),20-Tetren-17-Ol CAS NO 6885-48-9 is a high-purity, synthetic steroid derivative belonging to the 19-norpregnane class. This compound serves as a critical pharmaceutical intermediate and a versatile research chemical for the development of novel therapeutic agents. It is primarily utilized by pharmaceutical R&D laboratories and fine chemical manufacturers engaged in the synthesis of steroidal drugs and bioactive molecules.

Application

• Pharmaceutical Intermediate: A key building block in the multi-step synthesis of steroidal active pharmaceutical ingredients (APIs).
• Research & Development: Used in medicinal chemistry for the discovery and structure-activity relationship (SAR) studies of new hormone analogs.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method development in pharmaceutical analysis.
• Biochemical Research: Employed in academic and industrial labs to study steroid receptor interactions and metabolic pathways.
• Process Chemistry: Utilized in scaling up synthetic routes for the production of target steroidal compounds.

Basic Information

Product Name	(17R)-3-Methoxy-19-Norpregna-1,3,5(10),20-Tetren-17-Ol
CAS No.	6885-48-9
Molecular Formula	C₂₁H₂₈O₂
Molecular Weight	312.45 g/mol
Synonyms	17β-Hydroxy-3-methoxy-19-nor-1,3,5(10),20-pregnatetraene; 3-Methoxy-19-norpregna-1,3,5(10),20-tetraen-17β-ol; (17β)-3-Methoxy-19-norpregna-1,3,5(10),20-tetraen-17-ol; 19-Nor-17β-hydroxy-3-methoxy-1,3,5(10),20-pregnatetraene; 3-Methoxyestra-1,3,5(10),20-tetraen-17β-ol (19-nor derivative); 17R Isomer of 3-Methoxy-19-norpregna-1,3,5(10),20-tetraen-17-ol
EINECS	Contact for details

Quality Control

Our (17R)-3-Methoxy-19-Norpregna-1,3,5(10),20-Tetren-17-Ol is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the stringent requirements for pharmaceutical research. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting the specific results for that lot.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
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.