Description

(1R)-7α-Ethyl-1,2,3,4,4A,4Bα,5,6,7,8,10,10Aα-Dodecahydro-1,4Aβ,7-Trimethyl-1α-Phenanthrenecarboxylic Acid Methyl Ester is a high-purity, steroidal intermediate of significant importance in advanced organic synthesis. Its complex, fused-ring structure makes it a critical building block for the research and development of novel pharmaceutical compounds and fine chemicals. This product is essential for R&D chemists and process development scientists working in steroid chemistry, medicinal chemistry, and specialty chemical manufacturing.

Application

• Pharmaceutical Intermediate: A key chiral precursor in the synthesis of novel steroid-based therapeutics and active pharmaceutical ingredients (APIs).
• Medicinal Chemistry Research: Used as a scaffold or building block for drug discovery programs targeting hormone receptors and related biological pathways.
• Fine Chemical Synthesis: Serves as a starting material for the production of complex, high-value specialty chemicals with specific stereochemical configurations.
• Reference Standard: Employed as an analytical standard in quality control laboratories for method development and impurity profiling in steroid manufacturing.
• Academic & Industrial R&D: Utilized in research institutions and corporate R&D centers for exploring new synthetic routes and chemical transformations in steroid chemistry.

Basic Information

Item	Detail
Product Name	(1R)-7α-Ethyl-1,2,3,4,4A,4Bα,5,6,7,8,10,10Aα-Dodecahydro-1,4Aβ,7-Trimethyl-1α-Phenanthrenecarboxylic Acid Methyl Ester
CAS No.	3827-30-3
Molecular Formula	C21H34O2
Molecular Weight	318.50 g/mol
Synonyms	Methyl (1R,4aS,4bR,7S,10aS)-7-Ethyl-1,4a,7-trimethyldodecahydro-1-phenanthrenecarboxylate; 7α-Ethyl-1,2,3,4,4a,4bα,5,6,7,8,10,10aα-Dodecahydro-1,4aβ,7-trimethyl-1α-phenanthrenecarboxylic Acid Methyl Ester; (1R,4aS,4bR,7S,10aS)-7-Ethyl-1,4a,7-trimethyl-1,2,3,4,4a,4b,5,6,7,8,10,10a-dodecahydrophenanthrene-1-carboxylic acid methyl ester; Steroid intermediate 3827-30-3; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our (1R)-7α-Ethyl-1,2,3,4,4A,4Bα,5,6,7,8,10,10Aα-Dodecahydro-1,4Aβ,7-Trimethyl-1α-Phenanthrenecarboxylic Acid Methyl Ester is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee compliance with your research or production specifications.

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). Keep away from heat, sparks, and open flame. For long-term storage, consider inert gas purging.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Any single impurity	≤ 0.5%
Residual Solvents (GC)	Complies with ICH Q3C guidelines
Optical Rotation	Contact for details

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