Description

17β-Dihydro Equilin 3-Sulfate Sodium Salt is a high-purity, water-soluble sodium salt derivative of the equine estrogen equilin. This compound is a critical reference standard and key intermediate in the synthesis of complex steroid conjugates and pharmaceutical active ingredients. It is primarily utilized by research institutions and manufacturers in the pharmaceutical and biotechnology sectors for analytical method development, quality control, and the production of specialized hormonal compounds.

Application

• Pharmaceutical Reference Standard: Used for the identification, assay, and impurity profiling of related steroid products in compliance with pharmacopeial methods (e.g., USP, EP).
• Active Pharmaceutical Ingredient (API) Intermediate: Serves as a key synthetic building block in the manufacture of conjugated estrogen therapies and other steroid-based pharmaceuticals.
• Biochemical Research: Employed in metabolic studies, receptor binding assays, and research into estrogenic activity and hormone signaling pathways.
• Diagnostic Reagent Manufacturing: Utilized in the development and calibration of immunoassay kits and other diagnostic tools for hormone level detection.
• Veterinary Pharmaceutical Development: Applied in the research and formulation of hormonal treatments for animals.

Basic Information

Product Name	17β-Dihydro Equilin 3-Sulfate Sodium Salt
CAS No.	16680-49-2
Molecular Formula	C18H21NaO5S
Molecular Weight	372.41 g/mol
Synonyms	17β-Dihydroequilin 3-sulfate sodium salt; Sodium 17β-dihydroequilin 3-sulfate; Equilin 3-sulfate sodium salt (dihydro); Sodium estr-1,3,5(10)-trien-17β-ol-3-yl sulfate (7,8-dihydro equilin derivative); 1,3,5(10)-Estratrien-17β-ol-3-yl sulfate sodium salt (7,8-dihydro); 7,8-Dihydroequilin 3-sulfate sodium salt
EINECS	Contact for details

Quality Control

Every batch of 17β-Dihydro Equilin 3-Sulfate Sodium Salt is manufactured under strict quality management systems. Our products undergo rigorous analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure compliance with high-grade standards suitable for pharmaceutical research and development. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and related substances is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a desiccated environment to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥98.0%
Related Substances (HPLC)	Total impurities ≤2.0%
Water Content (KF)	≤5.0%
Residue on Ignition	≤0.5%

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