Description

1' 3'-Dihydro-8-Methoxy-1' 3' 3'-Trimethylspiro[2H-1-benzopyran-2,2'-indoline] is a specialized organic compound belonging to the spirooxazine class, known for its photochromic properties. This compound is critical for applications requiring precise light-responsive behavior and high-performance material science. It is primarily utilized by manufacturers in the advanced optical materials, smart coatings, and specialty chemical synthesis sectors.

Application

• Photochromic Lenses and Ophthalmic Products: A key intermediate or active component in the production of lenses that darken upon exposure to UV light.
• Smart Windows and Glass: Used in formulations for windows and glass panels that automatically adjust their tint based on sunlight intensity.
• Optical Data Storage and Sensors: Employed in the development of light-sensitive media and photonic sensors for data recording and environmental monitoring.
• Security Inks and Anti-Counterfeiting Features: Integrated into inks and dyes for banknotes, documents, and high-value products to create verifiable, light-reactive security marks.
• Novelty and Fashion Items: Used in textiles, plastics, and coatings for products like T-shirts, toys, and accessories that change color in sunlight.
• Research and Development: Serves as a valuable building block or model compound in academic and industrial R&D for studying photochromism and developing new functional materials.

Basic Information

Product Name	1' 3'-Dihydro-8-Methoxy-1' 3' 3'-Trimethylspiro[2H-1-benzopyran-2,2'-indoline]
CAS No.	1498-89-1
Molecular Formula	C20H21NO2
Molecular Weight	307.39 g/mol
Synonyms	8-Methoxy-1',3',3'-trimethylspiro[2H-1-benzopyran-2,2'-indoline]; Spirooxazine; Photochromic Spirooxazine; SO-1; 1,3-Dihydro-8-methoxy-1,3,3-trimethylspiro[2H-1-benzopyran-2,2'-(2H)indole]; 1498-89-1; Light-sensitive spiro[indoline-2,3'-[3H]naphth[2,1-b][1,4]oxazine] derivative
EINECS	Contact for details

Quality Control

Our photochromic spirooxazine products are manufactured under strict quality protocols to ensure batch-to-batch consistency and performance reliability. Quality is verified through advanced analytical techniques including HPLC, NMR, and UV-Vis spectroscopy to confirm identity, purity, and photochromic response. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is light-sensitive (store away from light). Keep away from heat and incompatible materials.

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
Fading Half-life (t1/2)	Contact for details

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