Description

1',3',3'-Trimethylspiro-8-Nitro(2H-1-Benzopyran)-2',2'-Indoline is a specialized photochromic compound belonging to the spirooxazine class. This chemical is valued for its reversible color change upon exposure to specific light wavelengths, making it a critical functional material. It is primarily sought by manufacturers in the advanced materials, optical data storage, and smart textile sectors for developing light-responsive products.

Application

• Photochromic Lenses and Coatings: Key functional component in ophthalmic lenses, sunglasses, and architectural glass coatings that darken upon UV exposure.
• Optical Data Storage Media: Used in the research and development of high-density, rewritable optical memory devices and holographic recording systems.
• Smart Textiles and Inks: Enables the production of fabrics, paints, and inks that change color with sunlight for security, fashion, or novelty applications.
• Molecular Switches and Sensors: Serves as a light-activated molecular switch in advanced chemical sensing platforms and photonic devices.
• Research and Development: A vital reagent for academic and industrial R&D in photochemistry, materials science, and nanotechnology.

Basic Information

Product Name	1',3',3'-Trimethylspiro-8-Nitro(2H-1-Benzopyran)-2',2'-Indoline
CAS No.	5150-50-5
Molecular Formula	C21H20N2O3
Molecular Weight	348.40 g/mol
Synonyms	8-Nitrospiro[2H-1-benzopyran-2,2'-indoline]; 8-Nitro BIPS; 1',3',3'-Trimethyl-8-nitrospiro[2H-1-benzopyran-2,2'-indoline]; Spiro[2H-1-benzopyran-2,2'-indoline], 8-nitro-1',3',3'-trimethyl-; 8-Nitro-1',3',3'-trimethylspiro[2H-1-benzopyran-2,2'-indoline]; Photochromic Spirooxazine; SO-8-NO2; Light-Sensitive Spiro Compound
EINECS	225-899-5

Quality Control

Our 1',3',3'-Trimethylspiro-8-Nitro(2H-1-Benzopyran)-2',2'-Indoline is produced under strict quality management systems to ensure batch-to-batch consistency and high performance. We provide comprehensive Certificates of Analysis (COA) detailing purity, photochromic performance, and impurity profiles to support your quality assurance protocols.

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 compound is light-sensitive and should be handled under subdued light or amber glass to prevent premature activation and degradation.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Photochromic Performance (δOD)	Contact for details

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