Description

3-Methyl-1H-Naphtho[2,1-B]Pyran-1-One CAS NO 5891-82-7 is a specialized organic compound belonging to the naphthopyranone class, serving as a valuable synthetic intermediate and building block in advanced chemical synthesis. Its unique fused-ring structure makes it a critical precursor for developing complex molecules with specific optical and electronic properties. This high-purity chemical is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors seeking to create novel active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly those targeting specific biological pathways where the naphthopyranone scaffold is active.
• Agrochemical Research: Used in developing new generations of pesticides and herbicides, leveraging its complex structure for enhanced efficacy and selectivity.
• Organic Electronic Materials: Serves as a precursor for organic semiconductors, light-emitting diodes (OLEDs), and other functional materials due to its potential photophysical properties.
• Dye and Pigment Synthesis: Intermediate in the production of high-performance dyes and pigments for specialized industrial applications.
• Academic & Industrial R&D: A crucial reagent for methodological studies in organic chemistry, including novel cyclization and coupling reactions.
• Fine Chemical Synthesis: Employed in the multi-step synthesis of complex fragrance compounds, flavors, and other high-value specialty chemicals.

Basic Information

Product Name	3-Methyl-1H-Naphtho[2,1-B]Pyran-1-One
CAS No.	5891-82-7
Molecular Formula	C₁₄H₁₀O₂
Molecular Weight	210.23 g/mol
Synonyms	3-Methyl-1H-naphtho[2,1-b]pyran-1-one; 3-Methyl-1H-benzo[f]chromen-1-one; 3-Methyl-1H-naphtho[2,1-b]pyran-1-one; 1H-Naphtho[2,1-b]pyran-1-one, 3-methyl-; 3-Methyl-1H-naphtho[2,1-b]pyran-1-one; 3-Methyl-1H-naphtho[2,1-b]pyran-1-one (alternative IUPAC); 3-Methyl-1H-naphtho[2,1-b]pyran-1-one (common)
EINECS	Contact for details

Quality Control

Our production of 3-Methyl-1H-Naphtho[2,1-B]Pyran-1-One adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for purity assessment and spectroscopic methods for structural confirmation. Certificates of Analysis (COA) detailing all critical parameters are provided with every shipment. We support cGMP standards for pharmaceutical applications and can tailor specifications to meet specific research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be opaque or stored in dark conditions to maintain product integrity.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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