Description

19-Ethynyl-19-Acetoxyandrost-4-Ene-3,6,17-Trione is a high-purity synthetic steroid derivative with a complex molecular structure featuring multiple ketone groups and an ethynyl-acetoxy moiety. This compound serves as a critical pharmaceutical intermediate and a versatile research chemical for the development of novel therapeutic agents. It is primarily utilized by pharmaceutical R&D laboratories and fine chemical manufacturers engaged in steroid chemistry and drug discovery programs.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of advanced steroid-based drugs and active pharmaceutical ingredients (APIs).
• Research & Development: Used in academic and industrial laboratories for studying enzyme inhibition, receptor binding, and metabolic pathways related to steroid hormones.
• Precursor for Steroid Analogues: Serves as a starting material for the preparation of modified androstane derivatives with potential biological activity.
• Biochemical Research: Employed as a reference standard or probe in biochemical assays to investigate steroidogenesis and related enzymatic processes.
• Fine Chemical Synthesis: Utilized in multi-step organic synthesis to create complex molecules for material science or specialty chemical applications.

Basic Information

Item	Details
Product Name	19-Ethynyl-19-Acetoxyandrost-4-Ene-3,6,17-Trione
CAS No.	147900-22-9
Molecular Formula	C23H26O5
Molecular Weight	382.45 g/mol
Synonyms	19-Ethynyl-19-acetoxyandrost-4-ene-3,6,17-trione; 19-Acetoxy-19-ethynyl-androst-4-ene-3,6,17-trione; 19-Ethynyl-19-acetoxy-4-androstene-3,6,17-trione; 19-Acetoxy-19-ethynyl-4-androstene-3,6,17-trione; 19-EAAT; Androst-4-ene-3,6,17-trione, 19-ethynyl-19-acetoxy-
EINECS	Contact for details

Quality Control

Our 19-Ethynyl-19-Acetoxyandrost-4-Ene-3,6,17-Trione is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and spectroscopic identification (IR, NMR), to ensure it meets exacting standards for research and synthesis. A detailed Certificate of Analysis (COA) is provided with every shipment to guarantee traceability and compliance with your specifications.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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