Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
Altrenogest
1. Basic Product Information
Product Name: Altrenogest
CAS Number: 850-52-2
Molecular Formula: C21H26O2
Molecular Weight: 310.43
Synonyms: 17α-Allyl-17β-hydroxyestra-4,9,11-trien-3-one
Product Category: Veterinary Steroid Hormone API, Raw Material for Swine Estrus Synchronization, Synthetic Progestogen Fine Chemical
2. Physical and Chemical Properties
Physical Indicators
- Appearance: Off-white to pale yellow crystalline powder
- Odor: Odorless with faint inherent steroid scent
- Solubility: Soluble in ethanol, methanol, chloroform and acetone; slightly soluble in vegetable oil; insoluble in water
- Melting Point: 116–120 °C
- Density (20 °C): 1.12 g/cm3
- Hygroscopicity: Non-hygroscopic under airtight sealed storage
- Aqueous Stability: Neutral steroid ketone, stable in cold neutral aqueous solution
Chemical Characteristics
- Molecular Structure: Estratriene conjugated skeleton, allyl group and hydroxyl group attached to C17, ketone group at C3, multiple unsaturated double bonds in the ring system
- Functional Mechanism: Synthetic progestogen that suppresses ovulation and estrus in sows to achieve batch estrus synchronization for livestock breeding
- Oxidation Tendency: Unsaturated triene bonds are susceptible to oxidation under light and high temperature, generating peroxide impurities and reducing product activity
- Photostability: Highly light-sensitive; UV exposure triggers discoloration and loss of hormonal efficacy
- Thermal Stability: Stable below 100 °C; decomposition occurs above 120 °C, releasing pungent hydrocarbon fumes
- Chemical Compatibility: Compatible with oil-based veterinary excipients; incompatible with strong oxidants and concentrated strong acids
3. Main Application Fields
- Core Application: Veterinary Reproductive Hormone API
Key raw material for oral formulations and feed premixes for sow estrus synchronization, widely used in pig farms to boost unified breeding efficiency - Compound Veterinary Formulation Intermediate
Raw material for compound oral liquids and premixes for livestock reproductive regulation - Reference Standard for Steroid Analysis
HPLC reference standard for related substance detection of altrenogest bulk drug - Laboratory Synthetic Research Substrate
Model triene progestogen compound for steroid molecular modification research
4. Platform Category & Product Group Selection Guide
1) Domestic B2B Platform Category
Recommended Path: Organic Intermediates / Veterinary Intermediates
Reason: It is a veterinary hormone API, classified as veterinary organic intermediate; not applicable for human pharmaceutical intermediates or water treatment chemical categories.
2) English Product Group Dropdown Options
Recommended Selection: Basic Organic Chemicals
Do NOT select Pharmaceutical Chemicals (reserved for human medicine raw materials). This product is exclusively for veterinary use and falls under fine basic organic chemicals.
3. Standard Packaging Specification (English Version for Foreign Trade)
1kg aluminum foil vacuum bag for laboratory samples; 25kg fiber drum lined with double PE plastic bags for bulk industrial orders; customized packaging specifications are acceptable upon request
5. Quality Specification Table
| Test Item | Standard Requirement |
| CAS Number | 850-52-2 |
| Molecular Formula | C21H26O2 |
| Appearance | Uniform off-white crystalline powder without dark yellow discoloration |
| HPLC Assay | Veterinary API Grade: 98.0%–102.0%; Reference Standard: ≥99.8% |
| Water Content (KF Method) | ≤0.30% |
| Single Unknown Impurity | ≤0.10% |
| Total Related Substances | ≤0.40% |
| Heavy Metals (Pb) | ≤10 ppm |
| Standard Storage Package | Light-proof nitrogen-sealed aluminum foil vacuum bag, 25kg fiber drum lined with PE film |
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