Description

Cyproterone Acetate is a synthetic steroidal antiandrogen with progestogenic properties. This compound is a critical active pharmaceutical ingredient (API) for the development of hormone-based therapies. It is primarily utilized in the pharmaceutical industry for the production of medications targeting androgen-dependent conditions. Our supply ensures high purity and reliable consistency for demanding manufacturing processes.

Application

• Pharmaceutical API: Primary active ingredient in antiandrogen medications for treating prostate cancer.
• Hormone Therapy: Key component in treatments for severe acne, hirsutism, and androgenetic alopecia in women.
• Contraceptive Formulations: Used in combination oral contraceptives for its potent progestogenic activity.
• Clinical Research: Reference standard and building block in endocrine and oncology research studies.
• Veterinary Medicine: Applied in the management of hormonal disorders and certain reproductive conditions in animals.
• Advanced Drug Delivery Systems: Incorporated into long-acting implants or transdermal patches for controlled release.

Basic Information

Product Name	Cyproterone Acetate
CAS No.	427-51-0
Molecular Formula	C24H29ClO4
Molecular Weight	416.94 g/mol
Synonyms	6-Chloro-1β,2β-dihydro-17α-hydroxy-3'H-cyclopropa[1,2]pregna-1,4,6-triene-3,20-dione 17-acetate; SH-80881; Androcur; Cyprostat; 1,2α-Methylene-6-chloro-δ6-17α-acetoxyprogesterone; NSC-81430; CPA
EINECS	207-050-8

Quality Control

Our Cyproterone Acetate is manufactured under strict quality management systems. We offer grades compliant with major pharmacopoeial standards, including USP and EP. Every batch is supported by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles to ensure it meets your specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White or almost white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	98.0% - 102.0% (on anhydrous basis)
Related Substances (HPLC)	Total impurities ≤ 2.0% Any individual impurity ≤ 0.5%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.