Description

Estradiol 3-Enanthate is a long-acting ester derivative of the primary female sex hormone, estradiol. This compound is valued for its enhanced pharmacokinetic profile, providing a sustained release of the active hormone over an extended period. It is a critical active pharmaceutical ingredient (API) and research chemical primarily utilized in the development of long-acting hormonal therapies and advanced biomedical research.

Application

• Pharmaceutical API: Core component in the formulation of long-acting injectable hormone replacement therapies (HRT) for managing menopausal symptoms and estrogen deficiency.
• Veterinary Medicine: Used in veterinary pharmaceuticals for estrus synchronization and fertility management in livestock.
• Research & Development: A vital reference standard and biochemical tool in endocrinology research for studying estrogen receptor activity and metabolic pathways.
• Controlled-Release Drug Delivery Systems: Serves as a model compound in the development of novel depot injection formulations and implantable devices.
• Hormone Analysis: Used as a calibration standard in analytical laboratories for the quantification of estrogen levels via HPLC, LC-MS, or GC-MS.

Basic Information

Product Name	Estradiol 3-Enanthate
CAS No.	55540-97-1
Molecular Formula	C25H36O3
Molecular Weight	384.56 g/mol
Synonyms	Estradiol Enanthate; Estradiol Heptanoate; 17β-Estradiol 3-Heptanoate; NSC 17591; Oestradiol Enanthate; Estradiol-17β-3-heptanoate; Estr-5(10)-ene-3,17-diol, 3-heptanoate, (17β)-; Estradiol 3-Heptanoate
EINECS	Contact for details

Quality Control

Our Estradiol 3-Enanthate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling via HPLC and other validated methods, to ensure it meets stringent specifications for pharmaceutical and research use. 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 a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline 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% Any single impurity ≤ 1.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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