Description

(9R)-8,8-Dimethyl-9,10-Dihydro-2-Oxo-2H,8H-Benzo[1,2-B:3,4-B']Dipyran-9-Ol is a high-purity, optically active benzopyran derivative with a complex fused ring structure. This compound serves as a critical chiral building block and intermediate in advanced organic synthesis, valued for its defined stereochemistry and molecular framework. It is essential for research and development chemists in the pharmaceutical, agrochemical, and fine chemical industries seeking to develop novel active ingredients and complex molecules.

Application

• Pharmaceutical Intermediate: Key chiral precursor for the synthesis of potential therapeutic agents, including central nervous system (CNS) drugs and anti-inflammatory compounds.
• Agrochemical Research: Used in developing novel pesticides and herbicides, leveraging its unique benzopyran scaffold for bioactivity.
• Fine Chemical Synthesis: Serves as a sophisticated building block for creating complex natural product analogs and specialty chemicals.
• Asymmetric Catalysis Studies: Employed as a substrate or ligand precursor in research focused on new catalytic asymmetric reactions.
• Material Science Research: Potential intermediate for synthesizing organic electronic materials or advanced polymers with specific optical properties.

Basic Information

Product Name	(9R)-8,8-Dimethyl-9,10-Dihydro-2-Oxo-2H,8H-Benzo[1,2-B:3,4-B']Dipyran-9-Ol
CAS No.	19380-05-3
Molecular Formula	C₁₄H₁₄O₄
Molecular Weight	246.26 g/mol
Synonyms	(9R)-8,8-Dimethyl-9,10-dihydro-2-oxo-2H,8H-benzo[1,2-b:3,4-b']dipyran-9-ol; (R)-8,8-Dimethyl-9,10-dihydro-2-oxo-2H,8H-benzo[1,2-b:3,4-b']dipyran-9-ol; 9R-Hydroxy-8,8-dimethyl-9,10-dihydro-2H,8H-benzo[1,2-b:3,4-b']dipyran-2-one; (9R)-9-Hydroxy-8,8-dimethyl-9,10-dihydro-2H,8H-benzo[1,2-b:3,4-b']dipyran-2-one; Optically active benzopyranol; (R)-Enantiomer of the benzodipyranone derivative.
EINECS	Contact for details

Quality Control

Our (9R)-8,8-Dimethyl-9,10-Dihydro-2-Oxo-2H,8H-Benzo[1,2-B:3,4-B']Dipyran-9-Ol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity verification by HPLC, to ensure high chemical and optical purity suitable for research and process development. Certificates of Analysis (COA) with detailed chromatographic data are provided to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The compound may be light-sensitive; prolonged exposure to light should be avoided. Keep container tightly sealed in a dry environment to minimize moisture uptake.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee (R-enantiomer)
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.