Description

(+)-4-[7,8-Dihydro-2,2-Dimethyl-2H,6H-Benzo[1,2-B:5,4-B']Dipyran-7-Yl]-2,3-Dimethoxyphenol is a high-purity, chiral benzopyran derivative of significant interest in advanced organic synthesis and pharmaceutical research. Its complex polycyclic structure with a phenolic moiety makes it a valuable intermediate or building block for developing novel bioactive compounds. This product is primarily targeted at research institutions, pharmaceutical R&D laboratories, and fine chemical manufacturers engaged in medicinal chemistry and process development.

Application

• Pharmaceutical Intermediate: Serves as a key chiral precursor in the synthesis of potential therapeutic agents, particularly for central nervous system (CNS) or cardiovascular targets.
• Medicinal Chemistry Research: Used as a scaffold or building block for structure-activity relationship (SAR) studies and library synthesis in drug discovery programs.
• Asymmetric Synthesis: Employed as a starting material or ligand precursor in catalytic asymmetric reactions due to its defined stereochemistry.
• Reference Standard: Utilized as an analytical standard for quality control and method development in pharmaceutical analysis.
• Fine Chemical Synthesis: Acts as an intermediate for creating complex natural product analogs or specialty chemicals with specific optical activity.

Basic Information

Product Name	(+)-4-[7,8-Dihydro-2,2-Dimethyl-2H,6H-Benzo[1,2-B:5,4-B']Dipyran-7-Yl]-2,3-Dimethoxyphenol
CAS No.	56495-96-6
Molecular Formula	C22H24O5
Molecular Weight	368.42 g/mol
Synonyms	(+)-4-(7,8-Dihydro-2,2-dimethyl-2H,6H-benzo[1,2-b:5,4-b']dipyran-7-yl)-2,3-dimethoxyphenol; (7R)-7-(3,4-Dimethoxy-5-hydroxyphenyl)-2,2-dimethyl-7,8-dihydro-2H,6H-benzo[1,2-b:5,4-b']dipyran; (R)-7-(3,4-Dimethoxy-5-hydroxyphenyl)-2,2-dimethyl-7,8-dihydro-2H,6H-benzo[1,2-b:5,4-b']dipyran; (+)-7-(3,4-Dimethoxy-5-hydroxyphenyl)-2,2-dimethyl-7,8-dihydro-2H,6H-benzo[1,2-b:5,4-b']dipyran; Benzopyran phenol derivative
EINECS	Contact for details

Quality Control

Our (+)-4-[7,8-Dihydro-2,2-Dimethyl-2H,6H-Benzo[1,2-B:5,4-B']Dipyran-7-Yl]-2,3-Dimethoxyphenol is produced under controlled conditions to ensure batch-to-batch consistency and high chemical purity. Each lot undergoes rigorous analytical testing, including HPLC for purity and chiral purity, NMR, and MS for structural confirmation. Certificates of Analysis (COA) detailing all test results are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store the product under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0% ee
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.