Description

1H-2-Benzopyran-4,5-Diol, 3,4-Dihydro-8-Methoxy-1,3-Dimethyl-, (1R,3S,4S)- (9Ci) is a high-purity, stereochemically defined chroman derivative, a key structural motif in bioactive molecules. This compound matters as a sophisticated chemical building block and pharmaceutical intermediate, enabling the synthesis of complex molecules with precise three-dimensional architecture. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for developing new active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: Serves as a critical chiral precursor in the synthesis of novel therapeutic agents, particularly those targeting neurological or metabolic pathways.
• Agrochemical Research: Used in the development of new-generation pesticides and herbicides, where the chroman core contributes to biological activity.
• Fine Chemical Synthesis: Acts as a versatile building block for creating complex natural product analogs and specialty chemicals.
• Academic & R&D: Employed in medicinal chemistry and organic synthesis research to explore new chemical spaces and reaction methodologies.
• Material Science: Potential use in the development of advanced organic materials, such as liquid crystals or photoresists, due to its rigid, fused-ring structure.

Basic Information

Product Name	1H-2-Benzopyran-4,5-Diol, 3,4-Dihydro-8-Methoxy-1,3-Dimethyl-, (1R,3S,4S)- (9Ci)
CAS No.	758695-39-5
Molecular Formula	C12H16O4
Molecular Weight	224.25 g/mol
Synonyms	(1R,3S,4S)-3,4-Dihydro-8-methoxy-1,3-dimethyl-1H-2-benzopyran-4,5-diol; 4,5-Dihydroxy-8-methoxy-1,3-dimethyl-3,4-dihydro-1H-isochromene; 758695-39-5; (1R,3S,4S)-8-Methoxy-1,3-dimethyl-3,4-dihydro-1H-isochromene-4,5-diol; Chroman-4,5-diol derivative; 1H-2-Benzopyran-4,5-diol, 3,4-dihydro-8-methoxy-1,3-dimethyl-, (1R,3S,4S)-; (1R,3S,4S)-(-)-8-Methoxy-1,3-dimethyl-3,4-dihydro-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-, (1R,3S,4S)- (9Ci) adheres to stringent quality management systems. Every batch undergoes comprehensive analytical testing, including chiral purity verification by HPLC, to ensure identity, potency, and purity meet exacting research-grade standards. A detailed Certificate of Analysis (COA) providing batch-specific data for identity, assay, chiral purity, and related substances is provided with each shipment to guarantee traceability and consistency for your critical R&D and scale-up processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). This compound may be 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
Assay (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee
Related Substances (HPLC)	Total impurities ≤ 2.0%
Any single unknown impurity	≤ 0.5%
Residual Solvents (GC)	Complies with ICH Q3C
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.