Description

1H-2-Benzopyran-4,5-Diol, 3,4-Dihydro-8-Methoxy-1,3-Dimethyl-, (1S,3S,4S)- (9Ci) is a high-purity, stereochemically defined dihydrobenzopyran derivative, identified by CAS number 758695-40-8. This compound serves as a critical chiral building block and synthetic intermediate for advanced pharmaceutical research and fine chemical synthesis. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key chiral precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for central nervous system (CNS) and cardiovascular targets.
• Asymmetric Synthesis: Utilized as a stereocontrolled building block for constructing complex natural products and bioactive molecules.
• Medicinal Chemistry Research: Serves as a core scaffold for structure-activity relationship (SAR) studies and library synthesis in drug discovery programs.
• Agrochemical Development: Intermediate in the research and production of advanced pesticides and herbicides with specific stereochemical requirements.
• Fine Chemical Synthesis: Used in the custom synthesis of specialty chemicals, flavors, and fragrances where precise stereochemistry is essential.
• Academic & Institutional Research: Valuable reagent for methodological development in organic chemistry and catalysis studies at universities and research institutes.

Basic Information

Product Name	1H-2-Benzopyran-4,5-Diol, 3,4-Dihydro-8-Methoxy-1,3-Dimethyl-, (1S,3S,4S)- (9Ci)
CAS No.	758695-40-8
Molecular Formula	C12H16O4
Molecular Weight	224.25 g/mol
Synonyms	(1S,3S,4S)-3,4-Dihydro-8-methoxy-1,3-dimethyl-1H-2-benzopyran-4,5-diol; (1S,3S,4S)-8-Methoxy-1,3-dimethyl-3,4-dihydro-1H-2-benzopyran-4,5-diol; 758695-40-8; 1H-2-Benzopyran-4,5-diol, 3,4-dihydro-8-methoxy-1,3-dimethyl-, (1S,3S,4S)-; (1S-cis)-3,4-Dihydro-8-methoxy-1,3-dimethyl-1H-2-benzopyran-4,5-diol
EINECS	Contact for details

Quality Control

Our production of 1H-2-Benzopyran-4,5-Diol, 3,4-Dihydro-8-Methoxy-1,3-Dimethyl-, (1S,3S,4S)- (9Ci) adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including chiral purity verification by HPLC, to ensure identity, potency, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with customer specifications and relevant industry standards for research-grade chemicals.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This compound is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (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.