Description

Benzoic Acid 2-Methyl-17-Oxoestra-1,3,5(10)-Trien-3-Yl Ester is a high-purity synthetic steroid derivative, specifically an ester of benzoic acid and a modified estrane structure. This compound is valued for its role as a critical pharmaceutical intermediate in the research and development of steroidal active pharmaceutical ingredients (APIs). It is primarily required by pharmaceutical manufacturers and advanced research institutions engaged in endocrinology, oncology, and metabolic disorder therapeutics.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel steroidal drugs and hormone analogs.
• Research & Development: Used in academic and industrial laboratories for pharmacological studies and structure-activity relationship (SAR) research.
• Reference Standard: Serves as a certified reference material (CRM) for analytical method development and quality control in API manufacturing.
• Precursor for Modified Steroids: Utilized in creating derivatives with potential therapeutic applications in hormone-dependent conditions.

Basic Information

Product Name	Benzoic Acid 2-Methyl-17-Oxoestra-1,3,5(10)-Trien-3-Yl Ester
CAS No.	51209-86-0
Molecular Formula	C27H32O3
Molecular Weight	404.55 g/mol
Synonyms	2-Methylestra-1,3,5(10)-triene-3,17-diol 3-benzoate; 2-Methyl-17-oxoestra-1,3,5(10)-trien-3-yl benzoate; 3-(Benzoyloxy)-2-methylestra-1,3,5(10)-trien-17-one; 2-Methylestratrien-3-ol-17-one benzoate; 17-Oxo-2-methylestra-1,3,5(10)-trien-3-yl benzoate
EINECS	Contact for details

Quality Control

Our Benzoic Acid 2-Methyl-17-Oxoestra-1,3,5(10)-Trien-3-Yl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC and NMR, to ensure high chemical purity and structural identity. Certificates of Analysis (COA) detailing purity, impurities, and full analytical data are provided with every shipment to support your regulatory and R&D documentation 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). Keep away from heat sources and incompatible materials.

Specification

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