Description

1,3,3-Trimethylindolino-β-Naphthopyrylospiran is a specialized organic compound belonging to the class of photochromic spiropyrans. This compound matters for its unique ability to undergo a reversible color change upon exposure to specific wavelengths of light, making it a critical functional material. It is primarily needed by researchers and manufacturers in the fields of advanced optical materials, smart coatings, molecular switches, and data storage technologies.

Application

• Photochromic Materials: Key component in the development of light-sensitive lenses, windows, and displays that adjust their tint automatically.
• Molecular Switches & Sensors: Used in research for creating light-activated molecular machines and optical chemical sensors.
• Optical Data Storage: Investigated for use in high-density, rewritable optical memory devices due to its reversible photoisomerization.
• Smart Textiles & Coatings: Enables the production of fabrics and surface coatings that change color with UV light exposure.
• Non-linear Optics (NLO): Potential application in the field of photonics for modulating light signals.
• Academic & Industrial R&D: Serves as a crucial reagent and model compound for studying photochromism and reaction kinetics.

Basic Information

Product Name	1,3,3-Trimethylindolino-β-Naphthopyrylospiran
CAS No.	1592-43-4
Molecular Formula	C26H21NO
Molecular Weight	363.45 g/mol
Synonyms	1,3,3-Trimethylindolino-β-naphthopyrylospiran; Spiropyran; 1',3'-Dihydro-1',3',3'-trimethyl-6-nitrospiro[2H-1-benzopyran-2,2'-(2H)-indole]; 6-Nitro-1',3',3'-trimethylspiro[2H-1-benzopyran-2,2'-indoline]; 6-Nitro BIPS; Photochromic Spiropyran; Spiro[2H-1-benzopyran-2,2'-indole] derivative; 1,3,3-Trimethylindolino-6-nitrobenzopyrylospiran
EINECS	Contact for details

Quality Control

Our 1,3,3-Trimethylindolino-β-Naphthopyrylospiran is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistent photochromic performance. Standard quality parameters include identity confirmation, assay by HPLC, and control of key impurities. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your R&D and quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at 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	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	178 - 182 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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