Description

Androst-5-Ene-3,11,17-Trione, Cyclic 3,17-Bis(1,2-Ethanediyl Acetal) is a high-purity, protected steroid derivative used as a critical synthetic intermediate. This compound matters for its role in enabling complex organic syntheses, particularly in the development of novel steroid-based pharmaceuticals and research chemicals. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, biotechnology, and fine chemical industries for advanced synthesis projects.

Application

• Pharmaceutical Intermediate: Key building block in the multi-step synthesis of specialized steroid-based active pharmaceutical ingredients (APIs) and drug candidates.
• Biochemical Research: Used as a precursor in the study of steroid hormone pathways, enzyme inhibitors, and receptor modulators.
• Fine Chemical Synthesis: Serves as a protected intermediate for the production of complex organic molecules in custom synthesis and process chemistry.
• Reference Standard: Can be utilized as a high-purity analytical standard for quality control and method development in analytical laboratories.

Basic Information

Product Name	Androst-5-Ene-3,11,17-Trione, Cyclic 3,17-Bis(1,2-Ethanediyl Acetal)
CAS No.	13872-18-9
Molecular Formula	C23H30O5
Molecular Weight	386.49 g/mol
Synonyms	3,11,17-Trioxoandrost-5-ene 3,17-bis(ethylene acetal); 5-Androstene-3,11,17-trione, cyclic 3,17-bis(ethylene acetal); Androst-5-ene-3,11,17-trione, cyclic 3,17-bis(ethylene ketal); 13872-18-9; NSC 113986; 3,17-Bis-O-(ethylidene)androst-5-ene-3,11,17-trione
EINECS	Contact for details

Quality Control

Our Androst-5-Ene-3,11,17-Trione, Cyclic 3,17-Bis(1,2-Ethanediyl Acetal) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical specifications are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Any single impurity	≤ 1.0%
Residual Solvents (GC)	Complies with ICH guidelines
Loss on Drying	≤ 0.5%

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