Description

1H-Naphtho[2,1-B]Pyran-1-One is a high-purity organic chemical building block and a fused heterocyclic compound of significant industrial interest. Its unique naphthopyranone structure makes it a valuable intermediate in the synthesis of advanced materials and functional dyes. This compound is primarily sought by R&D laboratories and manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing novel active ingredients and photochromic systems.

Application

• Pharmaceutical Intermediate: Key synthon for the research and development of novel drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators.
• Functional Dye & Pigment Precursor: Serves as a core structure for synthesizing photochromic dyes, optical brighteners, and high-performance pigments.
• Organic Electronic Materials: Investigated as a building block for organic semiconductors, OLEDs, and other electronic materials due to its conjugated system.
• Research & Development: Essential reference standard and starting material in academic and industrial organic chemistry research.
• Fine Chemical Synthesis: Intermediate for creating complex molecules used in flavors, fragrances, and other specialty applications.

Basic Information

Product Name	1H-Naphtho[2,1-B]Pyran-1-One
CAS No.	3528-22-1
Molecular Formula	C₁₅H₁₀O₂
Molecular Weight	222.24 g/mol
Synonyms	1H-Naphtho[2,1-b]pyran-1-one; 1H-Benzo[f]chromen-1-one; 1-Oxo-1H-naphtho[2,1-b]pyran; 1H-Naphtho[2,1-b]pyran-1-one; 1H-Benzo[f]chromen-1-one; 1H-Naphtho[2,1-b]pyranone; 1H-Naphtho(2,1-b)pyran-1-one
EINECS	Contact for details

Quality Control

Our 1H-Naphtho[2,1-B]Pyran-1-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (IR, NMR), to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	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.