Description

1,2-Benzenediol, 5-Bromo-3-Ethyl- (9Ci) is a specialized brominated and alkylated derivative of catechol, a key phenolic compound. This chemical serves as a valuable high-purity intermediate for the synthesis of complex organic molecules, particularly in advanced material science and pharmaceutical research. It is primarily utilized by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty polymer industries where precise molecular modification is required.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), especially those targeting neurological or oncological pathways.
• Agrochemical Synthesis: Used in the research and development of advanced herbicides, fungicides, and plant growth regulators.
• Polymer Chemistry: Acts as a functional monomer or cross-linking agent for producing high-performance, flame-retardant, or specialty epoxy resins.
• Material Science Research: Employed in the development of organic electronic materials, such as ligands for OLEDs or charge-transport materials.
• Chemical Synthesis Reagent: Serves as a precursor for further functionalization, enabling the creation of complex catechol-based libraries for screening.
• Dye and Pigment Intermediate: Used in the synthesis of specialized colorants and photographic chemicals.

Basic Information

Product Name	1,2-Benzenediol, 5-Bromo-3-Ethyl- (9Ci)
CAS No.	221244-58-2
Molecular Formula	C8H9BrO2
Molecular Weight	217.06 g/mol
Synonyms	5-Bromo-3-ethylbenzene-1,2-diol; 5-Bromo-3-ethylcatechol; 3-Ethyl-5-bromocatechol; 1,2-Dihydroxy-5-bromo-3-ethylbenzene; 5-Bromo-3-ethyl-1,2-benzenediol; Bromoethylcatechol; (5-Bromo-3-ethyl-1,2-phenylene) diol
EINECS	Contact for details

Quality Control

Our 1,2-Benzenediol, 5-Bromo-3-Ethyl- (9Ci) is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for research and process chemistry. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its light-sensitive and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 2.0%

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