Description

1,3,5(10)-Estratriene-3,17β-Diol 17-Benzoate 3-Butanoate is a high-purity, synthetic steroid derivative, specifically an ester of estradiol. This compound is valued for its precise chemical structure and stability, making it a critical advanced intermediate in pharmaceutical research and development. It is primarily utilized by manufacturers and R&D laboratories in the life sciences sector for the synthesis of specialized steroid-based active pharmaceutical ingredients (APIs) and reference standards.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of complex steroid hormones and therapeutic agents.
• Research & Development: Used as a reference standard or starting material in biochemical and pharmacological research studies.
• API Synthesis: Serves as a precursor in the controlled production of active pharmaceutical ingredients for hormonal therapies.
• Laboratory Reagent: Employed in analytical and synthetic chemistry laboratories for method development and validation.

Basic Information

Product Name	1,3,5(10)-Estratriene-3,17β-Diol 17-Benzoate 3-Butanoate
CAS No.	63042-19-3
Molecular Formula	C29H34O4
Molecular Weight	446.58 g/mol
Synonyms	Estradiol 17-benzoate 3-butyrate; 17β-Estradiol 17-benzoate 3-butyrate; Estra-1,3,5(10)-triene-3,17β-diol 17-benzoate 3-butanoate; Estratriene-3,17β-diol 17-benzoate 3-butanoate; 3-Butyryl-17-benzoyloxyestra-1,3,5(10)-triene; 3-Butanoate-17-benzoate of Estradiol
EINECS	Contact for details

Quality Control

Our 1,3,5(10)-Estratriene-3,17β-Diol 17-Benzoate 3-Butanoate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets exacting research and pharmaceutical-grade standards. A Certificate of Analysis (COA) detailing all specifications 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). Keep the container tightly sealed in a dry environment to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
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.