Description

[S,(+)]-3,4-Dihydro-4,9-Dihydroxy-2,2-Dimethyl-2H-Naphtho[2,3-B]Pyran-5,10-Dione is a high-purity, optically active naphthoquinone derivative with significant synthetic utility. This compound serves as a valuable chiral building block and intermediate in advanced organic synthesis, particularly for the development of complex natural products and pharmaceuticals. It is essential for research and development chemists in the pharmaceutical, agrochemical, and fine chemical industries seeking to introduce specific stereochemistry and functional complexity into target molecules.

Application

• Pharmaceutical Intermediate: Key chiral precursor in the synthesis of bioactive molecules, antitumor agents, and complex natural product analogs.
• Agrochemical Research: Used in the development of novel, stereospecific pesticides and plant growth regulators.
• Fine Chemical Synthesis: Serves as a versatile building block for creating specialty chemicals, dyes, and advanced materials requiring specific optical activity.
• Academic & R&D: Critical reagent for methodological studies in asymmetric synthesis and total synthesis projects within university and corporate research laboratories.
• Catalyst Ligand Development: Potential scaffold for the synthesis of novel chiral ligands used in asymmetric catalysis.

Basic Information

Product Name	[S,(+)]-3,4-Dihydro-4,9-Dihydroxy-2,2-Dimethyl-2H-Naphtho[2,3-B]Pyran-5,10-Dione
CAS No.	56473-67-7
Molecular Formula	C₁₅H₁₄O₅
Molecular Weight	274.27 g/mol
Synonyms	(S)-3,4-Dihydro-4,9-dihydroxy-2,2-dimethyl-2H-naphtho[2,3-b]pyran-5,10-dione; (S)-(+)-3,4-Dihydro-4,9-dihydroxy-2,2-dimethyl-2H-naphtho[2,3-b]pyran-5,10-dione; (S)-4,9-Dihydroxy-2,2-dimethyl-3,4-dihydro-2H-naphtho[2,3-b]pyran-5,10-dione; (S)-Dihydroxydimethyldihydronaphthopyrandione; (S)-Naphthopyrandione derivative; CAS 56473-67-7; (+)-enantiomer of the naphthoquinone pyran derivative.
EINECS	Contact for details

Quality Control

Our [S,(+)]-3,4-Dihydro-4,9-Dihydroxy-2,2-Dimethyl-2H-Naphtho[2,3-B]Pyran-5,10-Dione is manufactured under strict quality control protocols to ensure high chemical and optical purity. Each batch is analyzed using advanced chromatographic (HPLC, GC) and spectroscopic (NMR, IR) techniques. Certificates of Analysis (COA) detailing purity, enantiomeric excess, and impurity profiles are provided to guarantee consistency and reliability for your critical R&D and scale-up processes.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place at 2-8°C for long-term stability. This compound is light-sensitive and easily oxidized; allow the container to reach room temperature before opening to minimize moisture condensation and oxidative degradation.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Melting Point	Contact for details
Specific Rotation	Contact for details
Loss on Drying	≤ 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.