Description

1',3'-Dihydro-7-Methoxy-1',3',3'-Trimethyl-6-Nitrospiro[2H-1-Benzopyran-2,2'-[2H]Indole] is a high-purity, specialized photochromic compound belonging to the spirooxazine class. This compound is valued for its precise molecular structure, which enables controlled and reversible color changes upon exposure to specific light wavelengths. It is a critical advanced intermediate for manufacturers in the optical materials, smart coatings, and specialty chemical synthesis sectors, where performance and batch-to-batch consistency are paramount.

Application

• Photochromic Lens Manufacturing: As a key active ingredient in ophthalmic lenses and sunglasses that darken upon exposure to UV light.
• Optical Data Storage: Used in the research and development of next-generation, high-density optical memory and switching devices.
• Smart Windows & Coatings: Incorporated into films and coatings for windows, automotive glass, and displays to provide adaptive light transmission.
• Security Printing & Inks: Enables the production of advanced security features on banknotes, documents, and packaging that are verifiable under specific light conditions.
• Chemical Synthesis: Serves as a sophisticated building block for synthesizing novel photochromic dyes and functional organic molecules.
• Sensor Technology: Applied in the development of light-sensitive sensors and indicators for industrial and laboratory use.

Basic Information

Product Name	1',3'-Dihydro-7-Methoxy-1',3',3'-Trimethyl-6-Nitrospiro[2H-1-Benzopyran-2,2'-[2H]Indole]
CAS No.	6587-80-0
Molecular Formula	C22H22N2O4
Molecular Weight	378.42 g/mol
Synonyms	6-Nitro-1',3',3'-trimethylspiro[2H-1-benzopyran-2,2'-indoline]; 7-Methoxy-6-nitro-1',3',3'-trimethylspiro[2H-1-benzopyran-2,2'-indoline]; Spiro[2H-1-benzopyran-2,2'-indole], 1',3'-dihydro-7-methoxy-1',3',3'-trimethyl-6-nitro-; Photochromic Spirooxazine; SO-6NO2; 6-Nitro BIPS derivative; Light-sensitive spiro compound
EINECS	Contact for details

Quality Control

Our 1',3'-Dihydro-7-Methoxy-1',3',3'-Trimethyl-6-Nitrospiro[2H-1-Benzopyran-2,2'-[2H]Indole] is produced under strict quality management protocols to ensure high purity and consistent photochromic performance. Each batch is characterized using advanced analytical techniques including HPLC, NMR, and UV-Vis spectroscopy. Certificates of Analysis (COA) detailing purity, identity, and key performance indicators are provided to guarantee compliance with your specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its light-sensitive nature and propensity to be easily oxidized, it is recommended to store the material under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange 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
Fade Rate (t1/2)	Contact for details

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