Description

4-Bromoestrone is a halogenated derivative of the natural estrogen hormone estrone, serving as a key synthetic intermediate in advanced organic and medicinal chemistry. This compound is valued for its utility in the research and development of novel steroid-based pharmaceuticals and biochemical probes. It is primarily sought by research institutions and pharmaceutical companies engaged in the synthesis of hormone analogs, receptor modulators, and other high-value specialty chemicals.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of novel steroidal drugs and active pharmaceutical ingredients (APIs).
• Biochemical Research: Used as a precursor or reference standard in studies involving estrogen receptor binding and steroid metabolism.
• Organic Synthesis: Serves as a versatile intermediate for introducing the bromo functionality into complex steroid frameworks for further chemical modifications.
• Academic & R&D Laboratories: Employed in method development and exploratory chemistry projects within university and industrial research settings.

Basic Information

Product Name	4-Bromoestrone
CAS No.	1630-82-6
Molecular Formula	C18H21BrO2
Molecular Weight	349.27 g/mol
Synonyms	4-Bromoestra-1,3,5(10)-trien-3-ol-17-one; 4-Bromo-1,3,5(10)-estratrien-3-ol-17-one; 4-Bromo-17-oxoestra-1,3,5(10)-trien-3-ol; 4-Bromo-Oestrone; 4-Bromo-Estrone; 4-Br-Estrone
EINECS	Contact for details

Quality Control

Our 4-Bromoestrone is manufactured under strict quality control protocols to ensure high purity and batch-to-batch consistency. We provide comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles. Our quality management system is designed to meet the stringent requirements of research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 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 powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
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.