Description

Estriol Triacetate is a high-purity, acetylated derivative of the natural estrogen hormone estriol. This compound serves as a crucial pharmaceutical intermediate and a key reference standard in analytical chemistry and research. It is primarily utilized by manufacturers and research institutions in the pharmaceutical, biotechnology, and life science sectors for the development and quality control of hormone-based therapeutics and diagnostic assays.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of steroidal drugs and hormone replacement therapies.
• Reference Standard: Used for calibration, method validation, and quality control in analytical laboratories (HPLC, GC, MS).
• Biochemical Research: Employed in metabolic studies, receptor binding assays, and endocrinology research.
• API Manufacturing: Serves as a precursor in the production of Active Pharmaceutical Ingredients (APIs) for gynecological and menopausal treatments.
• Diagnostic Reagents: Utilized in the formulation of immunoassay kits and other diagnostic tools for hormone level detection.

Basic Information

Product Name	Estriol Triacetate
CAS No.	2284-32-4
Molecular Formula	C24H32O6
Molecular Weight	416.51 g/mol
Synonyms	Estriol 3,16α,17β-Triacetate; 1,3,5(10)-Estratrien-3,16α,17β-triol Triacetate; Estratriene-3,16α,17β-triol Triacetate; Oestriol Triacetate; NSC 12167; 16α-Hydroxyestradiol 3,17β-diacetate 16-acetate; 3,16α,17β-Triacetoxy-1,3,5(10)-estratriene
EINECS	218-904-5

Quality Control

Our Estriol Triacetate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and residual solvent analysis. A detailed Certificate of Analysis (COA) is provided with every shipment, ensuring traceability and compliance with relevant standards for pharmaceutical intermediates and reference materials.

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) and should be handled in a low-humidity environment to prevent degradation.

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%
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.