Description

Estra-1,3,5(10)-Triene-3,17Beta-Diol Bis(Cyclopentanepropionate) is a high-purity, synthetic steroid ester derivative of estradiol. This compound is valued for its enhanced stability and controlled-release profile compared to its parent hormone, making it a critical advanced intermediate in pharmaceutical research and development. It is primarily utilized by manufacturers in the life sciences sector for the synthesis of specialized hormonal APIs and for preclinical studies.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of specialized steroidal active pharmaceutical ingredients (APIs) and prodrugs.
• Hormone Research: Used in preclinical and biochemical research to study estrogen receptor activity, metabolism, and delivery mechanisms.
• Controlled-Release Formulations: Serves as a model compound in developing long-acting injectable or implantable drug delivery systems due to its esterified structure.
• Reference Standard: Employed as an analytical standard in quality control laboratories for method development and impurity profiling.
• Biochemical Tool: Utilized in cell culture and assay development to investigate estrogen-mediated pathways.

Basic Information

Product Name	Estra-1,3,5(10)-Triene-3,17Beta-Diol Bis(Cyclopentanepropionate)
CAS No.	633-36-3
Molecular Formula	C34H48O4
Molecular Weight	520.75 g/mol
Synonyms	Estradiol Biscyclopentanepropionate; 17β-Estradiol 3,17-Bis(cyclopentanepropionate); Estradiol 3,17-Dicyclopentanepropionate; NSC 17591; 3,17β-Dihydroxyestra-1,3,5(10)-triene 3,17-bis(cyclopentanepropionate); E2-BCP; Estradiol Dipropionate Cyclopentyl Analog
EINECS	Contact for details

Quality Control

Our Estra-1,3,5(10)-Triene-3,17Beta-Diol Bis(Cyclopentanepropionate) is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets the stringent requirements for research and pharmaceutical intermediate use. A detailed Certificate of Analysis (COA) is provided with each shipment, guaranteeing traceability and consistent quality.

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 light-sensitive (store away from light) and easily oxidized (store under inert atmosphere); it is recommended to store under an inert atmosphere such as nitrogen or argon for long-term stability.

Specification

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

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