Description

Spiro(2H-Indole-2,3'-(3H)Naphth(2,1-B)(1,4)Oxazine), 6'-(2,3-Dihydro-1H-Indol-1-Yl)-1,3-Dihydro-1,3,3-Trimethyl- is a sophisticated spirooxazine derivative, a key photochromic compound valued for its reversible color change upon exposure to specific light wavelengths. This property is critical for developing smart materials that require dynamic optical control and responsive behavior. It is essential for industrial and research applications in advanced optics, security printing, and functional polymer systems where reliable photochromic performance is paramount.

Application

• Photochromic Lenses and Ophthalmic Products: As a primary active ingredient in plastic lenses for sunglasses and adaptive eyewear that darken upon UV exposure.
• Security Inks and Anti-Counterfeiting Features: Used in high-security printing for banknotes, certificates, and brand protection, where invisible marks become visible under UV light.
• Smart Windows and Optical Filters: Incorporated into films and coatings for windows or displays to automatically regulate light transmission and glare.
• Novelty and Fashion Items: Applied in textiles, toys, and accessories that exhibit color-changing effects.
• Optical Data Storage and Sensors: Serves as a functional material in experimental systems for light-responsive data recording and chemical sensing.
• Advanced Polymer Research: A key monomer or additive for synthesizing photochromic polymers and composites with tunable properties.

Basic Information

Product Name	Spiro(2H-Indole-2,3'-(3H)Naphth(2,1-B)(1,4)Oxazine), 6'-(2,3-Dihydro-1H-Indol-1-Yl)-1,3-Dihydro-1,3,3-Trimethyl-
CAS No.	114747-44-3
Molecular Formula	C31H29N3O
Molecular Weight	459.58 g/mol
Synonyms	6'-(Indolin-1-yl)-1,3,3-trimethylspiro[indoline-2,3'-[3H]naphth[2,1-b][1,4]oxazine]; 1,3-Dihydro-1,3,3-trimethyl-6'-(2,3-dihydro-1H-indol-1-yl)spiro[2H-indole-2,3'-[3H]naphth[2,1-b][1,4]oxazine]; Spirooxazine derivative SO-IND; Photochromic Spirooxazine; SO-based photochrome; Spiro[indoline-naphthoxazine] derivative; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our production of this high-performance photochromic compound adheres to strict quality protocols to ensure batch-to-batch consistency in color change kinetics, fatigue resistance, and purity. Quality is verified through advanced analytical techniques including HPLC, NMR, and UV-Vis spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, assay, impurity profile, and performance characteristics is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is strictly light-sensitive and must be protected from all light exposure during storage and handling to prevent premature degradation of its photochromic properties. Keep the container tightly sealed in a dark environment.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Photochromic Performance (δOD)	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.