Description

1H-Naphtho[2,1-B]Pyran,4A is a specialized organic compound belonging to the naphthopyran class, a group of chemicals known for their unique photochromic and structural properties. This high-purity intermediate is critical for advanced research and development in fields requiring precise molecular architecture. It is primarily sought after by manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and advanced materials sectors for synthesizing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Research: Used in the development of new pesticides, herbicides, and plant growth regulators.
• Organic Electronics: Acts as a precursor for organic semiconductors, light-emitting diodes (OLEDs), and photochromic materials.
• Dye & Pigment Synthesis: Employed in the creation of specialized dyes, pigments, and optical brighteners.
• Academic & Industrial R&D: A valuable reagent for chemical research exploring heterocyclic chemistry and photochromism.
• Material Science: Used in the development of advanced polymers and coatings with specific light-responsive properties.

Basic Information

Product Name	1H-Naphtho[2,1-B]Pyran,4A
CAS No.	5153-92-4
Molecular Formula	C₁₇H₁₂O
Molecular Weight	232.28 g/mol
Synonyms	4aH-Naphtho[2,1-b]pyran; 1H-Naphtho[2,1-b]pyran, 4a,9b-dihydro-; 4a,9b-Dihydro-1H-naphtho[2,1-b]pyran; Naphtho[2,1-b]pyran, 4a,9b-dihydro-; 1H-Naphtho[2,1-b]pyran, 4a,9b-dihydro-; 4a,9b-Dihydrobenzo[f]chromene
EINECS	Contact for details

Quality Control

Our 1H-Naphtho[2,1-B]Pyran,4A 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 place at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white 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.