Description

Promestriene is a synthetic estrogen derivative with specific pharmacological activity. This compound is valued for its targeted action and is a key intermediate in the development of specialized therapeutic agents. It is primarily utilized by pharmaceutical R&D laboratories and manufacturers in the life sciences sector for the synthesis of advanced hormonal treatments.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of specialized estrogen-based APIs (Active Pharmaceutical Ingredients).
• Research & Development: Used in biochemical and pharmacological research to study estrogen receptor interactions and develop novel therapeutics.
• Hormone Therapy Development: Serves as a precursor in the formulation of targeted treatments for conditions related to hormonal imbalance.
• Reference Standard: Employed as an analytical standard in quality control laboratories for method development and validation.

Basic Information

Product Name	Promestriene
CAS No.	39219-28-8
Molecular Formula	C21H26O3
Molecular Weight	326.43 g/mol
Synonyms	Promestriene; 3-Propoxy-17β-hydroxy-1,3,5(10)-estratrien-17α-yl Propionate; 17α-(1-Methylethyl)androsta-4,9(11)-diene-3,17β-dione; SH 434; NSC 118191; A 5610; Estradiol 3-propyl ether 17-propionate
EINECS	Contact for details

Quality Control

Our Promestriene 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 exacting standards for pharmaceutical research and development. A detailed Certificate of Analysis (COA) is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 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 reference spectrum
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.