Description

7-Hydroxy-4-Methyl-2H-Naphtho(1,2-B)Pyran-2-One is a high-purity organic compound belonging to the coumarin derivative class, valued for its role as a versatile chemical intermediate and functional chromophore. Its significance lies in its ability to impart specific optical and chemical properties to advanced materials and specialty formulations. This product is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable, high-quality building blocks for synthesis and product development.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates.
• Agrochemical Synthesis: Used in the research and production of advanced crop protection agents and pesticides.
• Optical Brightening Agent (OBA) Precursor: Serves as a core structure in the manufacture of fluorescent whitening agents for paper, textiles, and detergents.
• Dye & Pigment Intermediate: Employed in the synthesis of specialized dyes, pigments, and colorants for industrial applications.
• Organic Light-Emitting Diode (OLED) Materials: Acts as a functional component in the development of emissive layers for display and lighting technologies.
• UV Absorber & Stabilizer: Incorporated into polymer formulations and coatings to enhance resistance to photodegradation.
• Research & Development: A valuable reference standard and starting material in academic and industrial organic chemistry research.
• Fine Chemical Synthesis: Utilized in multi-step synthetic routes for producing complex, high-value specialty chemicals.

Basic Information

Product Name	7-Hydroxy-4-Methyl-2H-Naphtho(1,2-B)Pyran-2-One
CAS No.	21353-16-2
Molecular Formula	C₁₅H₁₀O₃
Molecular Weight	238.24 g/mol
Synonyms	7-Hydroxy-4-methyl-2H-naphtho[1,2-b]pyran-2-one; 4-Methyl-7-hydroxy-2H-naphtho[1,2-b]pyran-2-one; 7-Hydroxy-4-methyl-2H-benzo[f]chromen-2-one; 4-Methylumbelliferone derivative; HNMP; Light-sensitive coumarin derivative
EINECS	Contact for details

Quality Control

Our 7-Hydroxy-4-Methyl-2H-Naphtho(1,2-B)Pyran-2-One is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot is subjected to comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet exacting customer specifications. Certificates of Analysis (COA) documenting identity, purity, and related substances are provided with every shipment to support your quality assurance and regulatory compliance needs.

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, handling and packaging should minimize exposure to direct light to preserve product integrity.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 0.5%
Heavy Metals	≤ 20 ppm

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