Description

2-(3',3'-Dimethyl-6-Nitrospiro[Chromene-2,2'-Indolin]-1'-Yl)Ethyl Methacrylate is a specialized photochromic compound belonging to the spirooxazine family, valued for its ability to undergo reversible color changes upon exposure to specific light wavelengths. This property makes it a critical functional material for advanced applications requiring dynamic light modulation. It is primarily sought by manufacturers in the optical materials, smart coatings, and high-performance polymer sectors.

Application

• Photochromic Lenses and Ophthalmic Products: A key raw material for manufacturing eyeglass lenses and visors that automatically darken in sunlight and clear indoors.
• Smart Windows and Optical Filters: Used in formulations for windows, sunroofs, and display filters that adjust transparency based on UV light intensity.
• Advanced Security Inks and Dyes: Incorporated into inks for banknotes, security documents, and authentication labels that exhibit color shifts under UV light.
• Functional Polymers and Coatings: Serves as a monomer for synthesizing polymers with light-responsive properties for coatings and films.
• Optical Data Storage and Sensors: Investigated for use in high-density data storage media and chemical/light sensors.
• Novelty and Fashion Items: Used in textiles, toys, and accessories that change color with sunlight exposure.

Basic Information

Product Name	2-(3',3'-Dimethyl-6-Nitrospiro[Chromene-2,2'-Indolin]-1'-Yl)Ethyl Methacrylate
CAS No.	25952-50-5
Molecular Formula	C24H24N2O5
Molecular Weight	420.46 g/mol
Synonyms	1'-(2-Methacryloyloxyethyl)-3',3'-dimethyl-6-nitrospiro[chromene-2,2'-indoline]; Ethyl Methacrylate, 2-(3',3'-dimethyl-6-nitrospiro[chromene-2,2'-indolin]-1'-yl)-; Spirooxazine photochromic monomer; Photochromic spirooxazine methacrylate; 6-Nitro-1',3',3'-trimethylspiro[2H-1-benzopyran-2,2'-indoline]-8-methacrylate; Light-responsive spirooxazine derivative; Photochromic dye intermediate
EINECS	Contact for details

Quality Control

Our production of 2-(3',3'-Dimethyl-6-Nitrospiro[Chromene-2,2'-Indolin]-1'-Yl)Ethyl Methacrylate adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability for critical optical applications. Each lot is characterized by advanced analytical techniques, including HPLC and NMR, to verify identity, purity, and the absence of undesired isomers or by-products. 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 a controlled room temperature (15-25°C). This compound is light-sensitive (store away from light) and should be handled under yellow or red safelight conditions in a laboratory setting to prevent premature activation. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
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.