Description

Estra-1,3,5(10)-Triene-3,17Beta-Diol Diheptanoate is a high-purity synthetic steroid ester, specifically the diheptanoate ester of estradiol. This compound is valued for its enhanced stability and lipophilicity compared to its parent hormone, making it a crucial advanced intermediate in pharmaceutical synthesis. It is primarily required by manufacturers in the pharmaceutical and life sciences sectors for the development of specialized hormone therapies and active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of specialized steroidal drugs and hormone replacement therapies.
• API Development: Used in research and development for creating novel estradiol-based active pharmaceutical ingredients with modified pharmacokinetic profiles.
• Biochemical Research: Serves as a reference standard or reagent in endocrine research and analytical method development.
• Controlled-Release Formulations: Its esterified form is investigated for use in long-acting depot injections or transdermal delivery systems.
• Veterinary Pharmaceuticals: Employed in the development of hormonal treatments for animals.

Basic Information

Product Name	Estra-1,3,5(10)-Triene-3,17Beta-Diol Diheptanoate
CAS No.	7732-97-0
Molecular Formula	C₃₂H₅₀O₄
Molecular Weight	502.74 g/mol
Synonyms	Estradiol Diheptanoate; 17β-Estradiol 3,17-Diheptanoate; Estra-1,3,5(10)-triene-3,17β-diol 3,17-diheptanoate; NSC 68926; Diheptanoyl Estradiol; E2 Diheptanoate
EINECS	Contact for details

Quality Control

Our Estra-1,3,5(10)-Triene-3,17Beta-Diol Diheptanoate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets exacting standards for pharmaceutical intermediate use. A detailed Certificate of Analysis (COA) documenting purity, assay, and impurity profiles is provided with every 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 dry environment to prevent degradation. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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