Description

3,4-Dihydro-2,2-Dimethyl-2H-1-Benzopyran-6-Butyric Acid is a high-purity chroman derivative with a defined carboxylic acid side chain, serving as a critical synthetic intermediate and building block in advanced organic synthesis. Its unique molecular architecture provides a versatile scaffold for constructing complex molecules, offering significant value in research and development. This compound is essential for pharmaceutical chemists, agrochemical researchers, and material scientists seeking to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) and cardiovascular diseases.
• Agrochemical Research: Used in the development of new pesticides and herbicides, leveraging the chroman core for bioactive molecule design.
• Material Science: Serves as a precursor for specialty polymers, liquid crystals, and organic electronic materials due to its rigid benzopyran structure.
• Flavor & Fragrance Synthesis: Acts as an intermediate for creating complex aroma chemicals and flavoring agents.
• Academic & Contract Research: A valuable reagent for methodological studies and custom synthesis projects in university and CRO laboratories.
• Fine Chemical Production: Employed in the multi-step synthesis of complex, high-value fine chemicals for various industrial applications.

Basic Information

Product Name	3,4-Dihydro-2,2-Dimethyl-2H-1-Benzopyran-6-Butyric Acid
CAS No.	58821-97-9
Molecular Formula	C15H20O3
Molecular Weight	248.32 g/mol
Synonyms	6-(3-Carboxypropyl)-2,2-dimethyl-2H-1-benzopyran; 2,2-Dimethylchroman-6-butyric Acid; Chroman-6-butyric Acid, 2,2-dimethyl-; 2,2-Dimethyl-3,4-dihydro-2H-1-benzopyran-6-butanoic Acid; 6-(3-Carboxypropyl)-2,2-dimethylchroman; DHBA (context-specific abbreviation); Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our 3,4-Dihydro-2,2-Dimethyl-2H-1-Benzopyran-6-Butyric Acid is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical documentation, including Certificates of Analysis (COA) with detailed results from HPLC, NMR, and IR spectroscopy. Our quality commitment aligns with cGMP principles for pharmaceutical intermediates, and we support customer audits and regulatory submissions.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. For long-term storage, consider using desiccants or an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Unknown Impurity	≤ 0.5%

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