Description

1,3,3-Trimethylindolino-6'-Nitrobenzopyrylospiran 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, a property critical for advanced functional materials. It is primarily needed by manufacturers and researchers in the fields of optical data storage, photochromic lenses, molecular switches, and smart sensor technologies.

Application

• Photochromic Materials: Key component in the formulation of lenses, coatings, and films that darken upon exposure to UV light.
• Optical Data Storage: Used in research and development of high-density, rewritable optical memory devices.
• Molecular Switches & Logic Gates: Serves as a light-activated molecular switch in nanotechnology and supramolecular chemistry applications.
• Chemical Sensors: Employed in the development of photoresponsive sensors for detecting specific ions or environmental changes.
• Non-linear Optics (NLO): Investigated for use in materials with variable light transmission properties for optical computing and telecommunications.
• Biomedical Imaging: Potential use as a photochromic probe or tag in advanced fluorescence microscopy techniques.

Basic Information

Product Name	1,3,3-Trimethylindolino-6'-Nitrobenzopyrylospiran
CAS No.	1498-88-0
Molecular Formula	C23H20N2O3
Molecular Weight	372.42 g/mol
Synonyms	6'-Nitro-1,3,3-trimethylspiro[indoline-2,3'-[3H]naphtho[2,1-b][1,4]oxazine]; 6'-Nitro BIPS; Spiro[1,3,3-trimethylindolino-2,3'-[3H]naphth[2,1-b][1,4]oxazine]-6'-nitro; Photochromic Spiropyran; 1,3,3-Trimethylindolino-β-naphthospirooxazine-6'-nitro; 6-Nitro BIPS (common abbreviation); Light-sensitive spiropyran derivative
EINECS	Contact for details

Quality Control

Our 1,3,3-Trimethylindolino-6'-Nitrobenzopyrylospiran is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and high performance in sensitive applications. All materials undergo rigorous analytical testing, including HPLC for purity, spectroscopic identification (IR, NMR), and photochromic performance validation. Certificates of Analysis (COA) detailing all specifications are 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). Due to its light-sensitive nature, all handling and packaging should be performed under subdued light or amber glass/light-blocking containers to prevent premature activation or degradation.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
Melting Point	178 - 182 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Photochromic Response	Conforms to reference standard

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