Description

(2R)-3,4-Dihydro-3β,4β-Dihydroxy-2α-Methyl-2H-Naphtho[2,3-B]Pyran-5,10-Dione is a high-purity, chiral naphthopyranone derivative of significant interest in advanced organic synthesis. This compound matters as a sophisticated chemical intermediate, offering a unique stereochemical framework for constructing complex molecular architectures. It is primarily needed by research institutions and pharmaceutical development companies engaged in the synthesis of novel active pharmaceutical ingredients (APIs) and other fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a key chiral building block in the research and development of new therapeutic agents.
• Organic Synthesis Research: Used in academic and industrial laboratories for studying stereoselective reactions and constructing complex heterocyclic systems.
• Fine Chemical Production: Acts as a precursor in the manufacture of specialty chemicals requiring specific naphthoquinone or dihydropyran motifs.
• Material Science Research: Potential application in the development of organic electronic materials or photoactive compounds due to its conjugated structure.

Basic Information

Product Name	(2R)-3,4-Dihydro-3β,4β-Dihydroxy-2α-Methyl-2H-Naphtho[2,3-B]Pyran-5,10-Dione
CAS No.	75442-57-8
Molecular Formula	C₁₄H₁₂O₅
Molecular Weight	260.24 g/mol
Synonyms	(2R)-3,4-Dihydro-3beta,4beta-dihydroxy-2alpha-methyl-2H-naphtho[2,3-b]pyran-5,10-dione; 2H-Naphtho[2,3-b]pyran-5,10-dione, 3,4-dihydro-3,4-dihydroxy-2-methyl-, (2R,3S,4S)-; (2R,3S,4S)-3,4-Dihydro-3,4-dihydroxy-2-methyl-2H-naphtho[2,3-b]pyran-5,10-dione; NSC 339586; Chiral naphthopyranone derivative; 2-Methyl-3,4-dihydroxy-3,4-dihydronaphtho[2,3-b]pyran-5,10-dione (R-configuration)
EINECS	Contact for details

Quality Control

Our (2R)-3,4-Dihydro-3β,4β-Dihydroxy-2α-Methyl-2H-Naphtho[2,3-B]Pyran-5,10-Dione is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity suitable for research applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing identity, purity, and chiral purity. We support compliance with relevant research and development standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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