Description

δ-9(11)-Estradiol 17-Enanthate is a synthetic, long-acting ester derivative of the natural estrogen hormone estradiol. This compound is of significant commercial interest for its enhanced pharmacokinetic profile, offering prolonged hormonal activity compared to its parent molecule. It is primarily utilized in the pharmaceutical and advanced research sectors for the development of hormone replacement therapies, veterinary medicines, and as a critical reference standard in analytical chemistry. The product is supplied under the CAS registry number 95960-05-7.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of long-acting hormonal therapeutics and prodrugs.
• Hormone Replacement Therapy (HRT) Research: Used in preclinical and formulation studies for developing sustained-release estrogen treatments.
• Veterinary Pharmaceuticals: Employed in the formulation of estrus synchronization agents and growth promoters in livestock.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method validation in HPLC, GC, and MS assays.
• Biochemical Research: Used in studies investigating estrogen receptor binding, metabolism, and endocrine system pathways.
• API Development: An active pharmaceutical ingredient (API) candidate for novel drug delivery systems.

Basic Information

Item	Detail
Product Name	δ-9(11)-Estradiol 17-Enanthate
CAS No.	95960-05-7
Molecular Formula	C25H36O3
Molecular Weight	384.56 g/mol
Synonyms	Estradiol 17-Enanthate; Estradiol Enanthate; 17β-Estradiol 17-Heptanoate; δ-9,11-Estradiol Enanthate; NSC 17591; Oestradiol Enanthate; Estr-5(10),9(11)-diene-3,17β-diol 17-heptanoate; Estradiol 17β-Heptanoate
EINECS	Contact for details

Quality Control

Every batch of δ-9(11)-Estradiol 17-Enanthate is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure identity, purity, and consistency, meeting the rigorous standards required for pharmaceutical development and research. A Certificate of Analysis (COA) detailing specifications such as assay, related substances, and residual solvents is available for each lot upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥98.0%
Related Substances (HPLC)	Total impurities ≤2.0%
Single Unknown Impurity	≤0.5%
Loss on Drying	≤0.5%
Residual Solvents (GC)	Complies with ICH Q3C guidelines

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