Description

Equilin Sulfate CAS NO 27540-07-4 is a conjugated equine estrogen sulfate, a key pharmaceutical intermediate and reference standard. This compound is of significant importance for its role in the synthesis and quality control of hormone replacement therapies and other steroidal pharmaceuticals. It is primarily required by pharmaceutical manufacturers, research institutions, and analytical laboratories engaged in the development and production of estrogen-based medications and diagnostic reagents.

Application

• Pharmaceutical Intermediate: A critical starting material or intermediate in the synthesis of conjugated estrogens and other steroidal APIs (Active Pharmaceutical Ingredients).
• Reference Standard: Used as a high-purity chemical standard in analytical laboratories for HPLC, LC-MS, and other chromatographic methods to ensure product quality and regulatory compliance.
• Biochemical Research: Employed in life science research to study estrogen receptor interactions, metabolic pathways, and hormonal mechanisms.
• Veterinary Medicine: Utilized in the formulation of certain veterinary hormonal treatments.
• Diagnostic Reagent Manufacturing: A component in the production of diagnostic kits and assays for hormonal level testing.

Basic Information

Product Name	Equilin Sulfate
CAS No.	27540-07-4
Molecular Formula	C18H20O5S
Molecular Weight	348.41 g/mol
Synonyms	Equilin 3-Sulfate; Equilin Sulfate Ester; 3-Hydroxyestra-1,3,5(10),7-tetraen-17-one Sulfate; 1,3,5(10),7-Estratetraene-3-ol-17-one Sulfate; Delta7-Estrone Sulfate; NSC 147998; Premarin Component
EINECS	Contact for details

Quality Control

Our Equilin Sulfate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including identification, purity assay, and impurity profiling via advanced techniques like HPLC and spectroscopy, to ensure it meets exacting standards for pharmaceutical and research use. Certificates of Analysis (COA) detailing all test results are available upon request to support your quality assurance and regulatory documentation 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

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%
Loss on Drying	≤2.0%
Related Substances (HPLC)	Total impurities ≤2.0%
Single Unknown Impurity	≤0.5%
Residual Solvents (GC)	Complies with ICH guidelines

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