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

Product Overview

Promestriene (CAS 39219-28-8) is a synthetic estradiol diether used for localized trophic effects. Conscientia Industrial manufactures high-purity Promestriene through specialized steroid etherification and precise chemical purification technologies. Our Promestriene 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

• Category: Pharmaceutical APIs

• Quality Standard: In-House Specification

• Molecular Formula: C22H32O2

• Molecular Weight: 328.49

• Appearance: White or off-white crystalline powder

• Solubility: Soluble in acetone; insoluble in water.

• Melting Point: 64.0°C - 68.0°C

• Specific Rotation: +62.0° - +75.0°

• Purity (HPLC): ≥99.0%

• Loss on Drying: ≤0.5%

• Residue on Ignition: ≤0.1%

• Heavy Metals: ≤10ppm

• TAMC: ≤1000CFU/g

• TYMC: ≤100CFU/g

• Brand: Conscientia Industrial

• Country of Origin: China

• Availability: In Stock

• Pricing: Competitive price based on purchase quantity

• Currency: USD

• Molecular Structure:

Why Partner with Conscientia Industrial

• Steroid Synthesis Expertise: Conscientia Industrial is 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 for Promestriene, 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.

• Direct Source Advantage: As a primary manufacturer of Promestriene (CAS 39219-28-8), we deliver competitive pricing, inventory stability, rapid lead times, and comprehensive technical support.

Packaging & Storage

• Standard Packaging: 100g, 1kg in sealed aluminum bags; 5kg or 25kg in fiber drums.

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

• Shelf Life: 24 months from the manufacturing date when preserved under the recommended storage conditions.

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

Shipping & Quotes

• Our logistics team ensures the safe and secure global shipping of Promestriene (CAS 39219-28-8) via international courier, air freight, and sea freight.

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