Description

1,3,5(10), 9(11)-Estratetraen-3-Ol-17-One is a high-purity steroid derivative, also known as 3-Hydroxyestra-1,3,5(10),9(11)-tetraen-17-one, serving as a critical intermediate in advanced pharmaceutical synthesis. Its precise molecular structure makes it an essential building block for the development of novel therapeutic agents and research compounds. This product is primarily targeted at pharmaceutical R&D laboratories, fine chemical manufacturers, and academic institutions engaged in steroid chemistry and hormone-related research.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex steroid-based active pharmaceutical ingredients (APIs).
• Research & Development: Used in academic and industrial laboratories for investigating novel biochemical pathways and receptor interactions.
• Fine Chemical Synthesis: Serves as a specialized starting material for creating custom steroid analogs and derivatives.
• Reference Standard: Employed as an analytical standard in quality control laboratories for method development and validation.
• Biochemical Studies: Utilized in studies exploring the structure-activity relationships (SAR) of estrogen-related compounds.

Basic Information

Item	Details
Product Name	1,3,5(10), 9(11)-Estratetraen-3-Ol-17-One
CAS No.	1089-80-1
Molecular Formula	C₁₈H₂₂O₂
Molecular Weight	270.37 g/mol
Synonyms	3-Hydroxyestra-1,3,5(10),9(11)-tetraen-17-one; 9(11)-Dehydroestrone; δ9(11)-Estrone; 1,3,5(10),9(11)-Estratetraene-3-ol-17-one; Estra-1,3,5(10),9(11)-tetraene-3,17-diol-17-one (tautomeric form); 3-Hydroxy-1,3,5(10),9(11)-estratetraen-17-one
EINECS	Contact for details

Quality Control

Our 1,3,5(10), 9(11)-Estratetraen-3-Ol-17-One is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chromatographic purity assays and structural confirmation, to ensure it meets the stringent requirements for pharmaceutical-grade intermediates. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your regulatory and quality assurance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials. This product is light-sensitive and should be stored away from light as indicated by its chemical properties.

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.