Description

5-Bromo-7-Methylisobenzofuran-1(3H)-One is a high-purity, synthetically valuable heterocyclic building block. This compound is essential for advanced organic synthesis, particularly in the development of novel active pharmaceutical ingredients (APIs) and functional materials. It is primarily utilized by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides due to its reactive bromine and lactone functionalities.
• Material Science: Serves as a building block for organic electronic materials, such as organic light-emitting diodes (OLEDs) and semiconductors.
• Chemical Synthesis: Acts as a versatile electrophile in cross-coupling reactions (e.g., Suzuki, Stille) and other metal-catalyzed transformations.
• Academic & R&D: A valuable reagent for methodological studies and the discovery of new synthetic pathways in university and industrial laboratories.

Basic Information

Product Name	5-Bromo-7-Methylisobenzofuran-1(3H)-One
CAS No.	1314217-74-7
Molecular Formula	C9H7BrO2
Molecular Weight	227.06 g/mol
Synonyms	5-Bromo-7-methyl-1,3-dihydroisobenzofuran-1-one; 5-Bromo-7-methylphthalide; 7-Methyl-5-bromophthalide; 5-Bromo-7-methyl-2-benzofuran-1(3H)-one; 1(3H)-Isobenzofuranone, 5-bromo-7-methyl-
EINECS	Contact for details

Quality Control

Our 5-Bromo-7-Methylisobenzofuran-1(3H)-One is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) with detailed specifications are provided for each lot to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.