Description

5,8-Bis(Acetyloxy)-2-Methyl-4H-Naphtho[2,3-B]Pyran-4,6,9-Trione is a high-purity, specialized organic compound belonging to the naphthopyranone class. This chemical serves as a critical advanced intermediate or building block in the synthesis of complex molecules, particularly in pharmaceutical research and fine chemical manufacturing. It is essential for R&D chemists and process development scientists working in pharmaceuticals, agrochemicals, and material science who require precise and reliable synthetic components.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for compounds with naphthoquinone or fused heterocyclic structures.
• Agrochemical Research: Used in the development of new herbicides, fungicides, or plant growth regulators that leverage its unique polycyclic framework.
• Organic Synthesis & Catalysis: Serves as a precursor or ligand in the development of new catalytic systems and complex organic transformations.
• Material Science: Potential intermediate for creating specialized dyes, pigments, or organic electronic materials due to its conjugated system.
• Academic & Industrial R&D: A valuable reagent for methodological studies and exploring new chemical spaces in university and corporate research laboratories.

Basic Information

Product Name	5,8-Bis(Acetyloxy)-2-Methyl-4H-Naphtho[2,3-B]Pyran-4,6,9-Trione
CAS No.	62681-87-2
Molecular Formula	C₁₉H₁₂O₈
Molecular Weight	368.29 g/mol
Synonyms	5,8-Diacetoxy-2-methyl-4H-naphtho[2,3-b]pyran-4,6,9-trione; 2-Methyl-5,8-bis(acetyloxy)-4H-naphtho[2,3-b]pyran-4,6,9-trione; Naphtho[2,3-b]pyran-4,6,9-trione, 5,8-bis(acetyloxy)-2-methyl-4H-; 62681-87-2; 5,8-Bis(acetoxy)-2-methylnaphtho[2,3-b]pyran-4,6,9-trione
EINECS	Contact for details

Quality Control

Our 5,8-Bis(Acetyloxy)-2-Methyl-4H-Naphtho[2,3-B]Pyran-4,6,9-Trione is produced under strict quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to ensure high purity and consistent identity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality systems are designed to support cGMP and ISO standards for research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider inert gas purging to maintain stability.

Specification

Item	Specification
Appearance	Yellow to Orange Crystalline Powder
Identification (IR)	Conforms to Structure
Identification (HPLC)	Conforms to Reference
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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