Description

Moxestrol CAS NO 34816-55-2 is a synthetic steroidal estrogen, recognized for its potent biological activity and high receptor affinity. This compound is a critical intermediate and active pharmaceutical ingredient (API) in advanced pharmaceutical research and development. It is primarily utilized by pharmaceutical manufacturers, research institutions, and biotechnology companies engaged in endocrinology, oncology, and the development of novel hormonal therapies.

Application

• Pharmaceutical API: Serves as a key active ingredient in the formulation of high-potency estrogenic drugs and hormone replacement therapies.
• Biomedical Research: Used as a reference standard and tool compound in studies of estrogen receptor (ER) signaling, mechanism of action, and cellular proliferation.
• Oncology Research: Investigated in preclinical models for its potential role in hormone-sensitive cancers, including certain breast and prostate cancers.
• Endocrinology Studies: Employed in laboratory research to understand estrogen metabolism, hormonal feedback loops, and reproductive biology.
• Chemical Synthesis: Acts as a sophisticated synthetic intermediate for the preparation of more complex steroidal derivatives and novel chemical entities.
• Veterinary Medicine: Potential application in veterinary pharmaceuticals for reproductive health management in livestock.

Basic Information

Product Name	Moxestrol
CAS No.	34816-55-2
Molecular Formula	C21H26O3
Molecular Weight	326.43 g/mol
Synonyms	11β-Methoxy-19-nor-17α-pregna-1,3,5(10)-trien-20-yne-3,17β-diol; 11β-Methoxy-17α-ethynylestradiol; RU-2858; 11β-Methoxyethynylestradiol; NSC-118191; 17α-Ethynyl-11β-methoxyestra-1,3,5(10)-triene-3,17β-diol
EINECS	Contact for details

Quality Control

Our Moxestrol 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. We provide full traceability and Certificates of Analysis (COA) are available for every shipment, ensuring compliance with research and pharmaceutical-grade standards.

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 must be kept under dry, inert conditions to maintain stability and potency.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Maximum Impurity	≤ 0.5%
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.