Description

4,9(11)-Pregnadien-3,20-Dione is a high-purity steroid intermediate with the CAS registry number 17652-16-3. This compound is a critical building block in the synthesis of more complex steroid-based active pharmaceutical ingredients (APIs). It is primarily utilized by research institutions and pharmaceutical manufacturers engaged in the development and production of steroidal drugs and reference standards.

Application

• Pharmaceutical Intermediate: A key precursor in the multi-step synthesis of steroidal hormones and related therapeutic agents.
• Reference Standard: Used as a certified reference material (CRM) for analytical method development, validation, and quality control in pharmaceutical laboratories.
• Biochemical Research: Serves as a substrate or standard in studies investigating steroid metabolism, enzyme activity, and receptor binding assays.
• Process Development: Employed in research and development for optimizing synthetic routes and scaling up production of steroid derivatives.

Basic Information

Product Name	4,9(11)-Pregnadien-3,20-Dione
CAS No.	17652-16-3
Molecular Formula	C21H28O2
Molecular Weight	312.45 g/mol
Synonyms	9(11)-Dehydroprogesterone; 4,9(11)-Pregnadiene-3,20-dione; 9,11-Dehydroprogesterone; NSC 88915; 20-Oxo-4,9(11)-pregnadien-3-one; Pregna-4,9(11)-diene-3,20-dione
EINECS	Contact for details

Quality Control

Our 4,9(11)-Pregnadien-3,20-Dione is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling, to ensure it meets stringent specifications for research and pharmaceutical use. A Certificate of Analysis (COA) detailing all test results 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). The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
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.