Description

1,3,3-Trimethylindolinonaphthospirooxazine is a high-performance photochromic organic compound belonging to the spirooxazine class. This compound is valued for its reversible color change upon exposure to ultraviolet light, making it a critical functional material in advanced optical applications. It is primarily sought after by manufacturers in the photochromic lens, smart window, optical data storage, and specialty ink and coating industries.

Application

• Photochromic Ophthalmic Lenses: As a key active ingredient for plastic and glass lenses that darken automatically in sunlight.
• Smart Window Films and Glass: For dynamic light control in architectural and automotive glazing to manage solar heat gain and glare.
• Optical Data Storage Media: Utilized in research and development for high-density, rewritable optical memory devices.
• Security Printing and Anti-Counterfeiting Inks: To create covert, UV-responsive security features on banknotes, documents, and high-value products.
• Novelty and Fashion Items: In textiles, plastics, and coatings for color-changing effects in consumer goods.
• Chemical Sensors and Probes: For research applications in developing photoresponsive molecular sensors.

Basic Information

Product Name	1,3,3-Trimethylindolinonaphthospirooxazine
CAS No.	27333-47-7
Molecular Formula	C23H20N2O
Molecular Weight	340.42 g/mol
Synonyms	1,3,3-Trimethylspiro[indoline-2,3'-[3H]naphth[2,1-b][1,4]oxazine]; Spirooxazine; Photochromic Spirooxazine; SO-1; 1,3,3-Trimethylspiro[indolino-2,3'-[3H]naphth[2,1-b][1,4]oxazine]; 1,3,3-Trimethylspiro[indoline-2,3'-[3H]naphtho[2,1-b]oxazine]; Naphthospirooxazine; 1,3,3-Trimethylindolinobenzospiropyran (related class)
EINECS	Contact for details

Quality Control

Our 1,3,3-Trimethylindolinonaphthospirooxazine is produced under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity, UV-Vis spectroscopy for photochromic performance, and identity confirmation via FT-IR and NMR. A comprehensive Certificate of Analysis (COA) detailing purity, performance metrics, and impurity profiles is provided with each shipment to ensure it meets the stringent requirements of optical and advanced material applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Photochromic Performance (δT)	Contact for details
Fatigue Resistance (Cycles)	Contact for details

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