Description

1,3,5(10),9(11)-Estratetrene-3,17β-Diol Diacetate is a high-purity steroid derivative, specifically a diacetylated form of estradiol. This compound is a critical pharmaceutical intermediate valued for its precise chemical structure and purity, which are essential for the synthesis of advanced steroid-based active pharmaceutical ingredients (APIs). It is primarily required by research institutions and manufacturers in the pharmaceutical and biotechnology sectors for the development and production of specialized hormonal therapies and reference standards.

Application

• Pharmaceutical Intermediate: A key building block in the multi-step synthesis of complex steroidal drugs and novel hormonal agents.
• Reference Standard: Used in analytical laboratories for method development, validation, and quality control testing of related steroid compounds.
• Biochemical Research: Employed in academic and industrial research to study steroid metabolism, receptor interactions, and structure-activity relationships (SAR).
• API Development: Serves as a precursor in the development of new estradiol-derived therapeutic candidates with modified pharmacological profiles.

Basic Information

Product Name	1,3,5(10),9(11)-Estratetrene-3,17β-Diol Diacetate
CAS No.	1169-54-6
Molecular Formula	C22H28O4
Molecular Weight	356.46 g/mol
Synonyms	Estradiol Diacetate; 3,17β-Diacetoxyestra-1,3,5(10),9(11)-tetraene; Estra-1,3,5(10),9(11)-tetraene-3,17β-diol diacetate; 1,3,5(10),9(11)-Estratetraene-3,17β-diol 3,17-diacetate; NSC 9895; 3,17β-Diacetoxy-1,3,5(10),9(11)-estratetraene
EINECS	Contact for details

Quality Control

Our 1,3,5(10),9(11)-Estratetrene-3,17β-Diol Diacetate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the stringent requirements for pharmaceutical intermediates. 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). Keep the container tightly sealed in a dry environment to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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