Description

7-Methoxy-4,4-Dimethyl-1H-2-Benzopyran-1,3(4H)-Dione is a specialized organic compound belonging to the class of substituted benzopyrandiones, serving as a valuable synthetic intermediate and building block in advanced chemical synthesis. Its unique molecular structure makes it a critical precursor for developing complex heterocyclic compounds and active pharmaceutical ingredients (APIs). This high-purity chemical is essential for research and development laboratories, pharmaceutical manufacturers, and fine chemical producers seeking reliable, high-quality intermediates for their synthesis workflows.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs), particularly for compounds with benzopyran or coumarin-like scaffolds.
• Agrochemical Research: Used in the development and synthesis of new agrochemicals, including potential herbicides and fungicides, leveraging its heterocyclic core structure.
• Organic Synthesis & Material Science: Serves as a versatile precursor for creating complex organic molecules, dyes, and functional materials in academic and industrial R&D settings.
• Flavor & Fragrance Industry: Potential intermediate for synthesizing specific aroma chemicals and fragrance components due to its methoxy-substituted aromatic system.
• Chemical Research: Employed in methodological studies and as a standard or reagent in various organic transformations and catalytic processes.

Basic Information

Product Name	7-Methoxy-4,4-Dimethyl-1H-2-Benzopyran-1,3(4H)-Dione
CAS No.	55974-25-9
Molecular Formula	C₁₂H₁₂O₄
Molecular Weight	220.22 g/mol
Synonyms	7-Methoxy-4,4-dimethylisochromane-1,3-dione; 4,4-Dimethyl-7-methoxy-1H-2-benzopyran-1,3(4H)-dione; 7-Methoxy-4,4-dimethyl-1H-isochromene-1,3(4H)-dione; 4,4-Dimethyl-7-methoxyisochroman-1,3-dione; 7-Methoxy-4,4-dimethylphthalide; 3-Hydroxy-7-methoxy-4,4-dimethyl-1(4H)-isobenzofuranone (tautomeric form); Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our 7-Methoxy-4,4-Dimethyl-1H-2-Benzopyran-1,3(4H)-Dione is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Production adheres to cGMP guidelines where applicable, and all materials are subjected to rigorous analytical testing including HPLC, GC, and NMR. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee compliance with your specific research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Any individual impurity ≤ 0.5%; Total impurities ≤ 1.0%

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