Promestriene API | CAS 39219-28-8 Manufacturer & Supplier in China

Product Overview

Promestriene (CAS 39219-28-8) is a unique synthetic estrogenic diether used primarily for localized trophic effects. As a premier China manufacturer and supplier within the Pharmaceutical APIs sector, Conscientia Industrial provides high-purity Promestriene produced through specialized steroid etherification technology. This active raw material is specifically designed for pharmaceutical formulations such as vaginal creams and suppositories, ensuring targeted efficacy with minimal systemic absorption for the global healthcare market.

Technical Specifications

• Product Name: Promestriene

• CAS Number: 39219-28-8

• Quality Standard: In-house

• Purity (HPLC): ≥98.0%

• Molecular Formula: C22H32O2

• Molecular Weight: 328.49

• Appearance: White to off-white crystalline powder

• Melting Point: 107℃ - 110℃

• Specific Rotation: +64.0° - +68.0°

• Water Content: ≤0.5%

• Country of Origin: China

• Pricing: Competitive price based on quantity

• Currency: USD

• Chemical Structure:

Why Partner with Conscientia Industrial

• Steroid Synthesis Expertise: Specialized in the production and purification of high-standard hormonal active pharmaceutical ingredients and their derivatives.

• Advanced Quality Assurance: Every batch of Promestriene is verified by HPLC and Mass Spectrometry to meet international industrial and pharmaceutical standards.

• Documentation and Compliance: We provide a full suite of technical support, including Certificate of Analysis (COA), MSDS, and Method of Analysis (MOA).

• Scalable Industrial Supply: Reliable production capacity from our China facility to support your project from research samples to bulk commercial manufacturing.

• As a leading China manufacturer, we provide Promestriene CAS 39219-28-8 with factory-direct pricing.

Packaging & Storage

• Standard Packaging: 100g, 1kg in sealed aluminum bags or custom bulk fiber drums.

• Storage Conditions: Store at room temperature (below 30℃). Keep the container tightly sealed and protected from light and moisture to ensure long-term stability.

• Safety Handling: This is a professional-grade hormonal API intended for industrial pharmaceutical production and laboratory research use only.

• Our logistics team ensures safe delivery of Promestriene CAS 39219-28-8 by courier / air / sea.

Request a Quote & COA for Promestriene CAS 39219-28-8 Today.