Description

1H-2-Benzopyran-4,5-Diol, 3,4-Dihydro-8-Methoxy-1,3-Dimethyl-, (1R,3R,4S)-Rel- (9Ci) is a high-purity, stereochemically defined chroman derivative of significant interest in advanced organic synthesis. This compound serves as a critical chiral building block and intermediate for the development of novel pharmaceutical agents and fine chemicals. It is primarily sought after by research and development teams in the pharmaceutical, agrochemical, and specialty chemical industries for creating complex molecules with specific biological activities.

Application

• Pharmaceutical Intermediate: Key chiral synthon for the research and development of new active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring stereochemical precision.
• Agrochemical Synthesis: Building block for developing novel herbicides, fungicides, or plant growth regulators with enhanced efficacy and selectivity.
• Fine Chemical Production: Used in the synthesis of complex fragrance compounds, dyes, and other high-value specialty chemicals.
• Academic & Contract Research: Essential material for methodological studies in asymmetric synthesis, catalysis, and medicinal chemistry within academic and industrial R&D laboratories.
• Ligand & Catalyst Development: Potential precursor for creating novel chiral ligands or organocatalysts used in enantioselective transformations.

Basic Information

Product Name	1H-2-Benzopyran-4,5-Diol, 3,4-Dihydro-8-Methoxy-1,3-Dimethyl-, (1R,3R,4S)-Rel- (9Ci)
CAS No.	569652-74-0
Molecular Formula	C12H16O4
Molecular Weight	224.25 g/mol
Synonyms	rel-(1R,3R,4S)-3,4-Dihydro-8-methoxy-1,3-dimethyl-1H-2-benzopyran-4,5-diol; 3,4-Dihydro-8-methoxy-1,3-dimethyl-1H-2-benzopyran-4,5-diol, (1R,3R,4S)-rel-; 569652-74-0; Chroman-4,5-diol derivative; 8-Methoxy-1,3-dimethylchroman-4,5-diol (rel-(1R,3R,4S)-form)
EINECS	Contact for details

Quality Control

Our 1H-2-Benzopyran-4,5-Diol, 3,4-Dihydro-8-Methoxy-1,3-Dimethyl-, (1R,3R,4S)-Rel- (9Ci) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and chiral purity, to ensure it meets exacting customer specifications. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting identity, assay, and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents.

Specification

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