Description

1H-2-Benzopyran-4,5-Diol, 3,4-Dihydro-6-Methoxy-1,3-Dimethyl-, (1R,3S,4R)- (9Ci) is a high-purity, stereochemically defined dihydrobenzopyran derivative. This compound serves as a critical chiral building block and advanced intermediate for the synthesis of complex organic molecules, offering precise structural control. It is primarily needed by research institutions and pharmaceutical development teams engaged in medicinal chemistry, process R&D, and the production of fine chemicals.

Application

• Pharmaceutical Intermediate: Key chiral precursor in the synthesis of novel active pharmaceutical ingredients (APIs) and drug candidates.
• Medicinal Chemistry Research: Used as a scaffold or building block for structure-activity relationship (SAR) studies and library synthesis.
• Process Development: Serves as a standard or starting material for optimizing scalable synthetic routes in fine chemical manufacturing.
• Academic Research: Employed in organic synthesis projects focusing on stereoselective reactions and natural product analogs.
• Reference Standard: Utilized as a high-purity analytical standard for method development and quality control in analytical laboratories.

Basic Information

Product Name	1H-2-Benzopyran-4,5-Diol, 3,4-Dihydro-6-Methoxy-1,3-Dimethyl-, (1R,3S,4R)- (9Ci)
CAS No.	688005-03-0
Molecular Formula	C12H16O4
Molecular Weight	224.25 g/mol
Synonyms	(1R,3S,4R)-3,4-Dihydro-6-methoxy-1,3-dimethyl-1H-2-benzopyran-4,5-diol; 1H-2-Benzopyran-4,5-diol, 3,4-dihydro-6-methoxy-1,3-dimethyl-, (1R,3S,4R)-; 688005-03-0; (1R,3S,4R)-6-Methoxy-1,3-dimethyl-3,4-dihydro-1H-isochromene-4,5-diol; Dihydrobenzopyran Diol Derivative; Chiral Dihydroisochromene Diol
EINECS	Contact for details

Quality Control

Our 1H-2-Benzopyran-4,5-Diol, 3,4-Dihydro-6-Methoxy-1,3-Dimethyl-, (1R,3S,4R)- (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity verification by HPLC, to ensure compliance with exacting standards for research and development use. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). The product is moisture-sensitive; keep the container tightly sealed in a dry environment.

Specification

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