Description

8'-Methoxy-1,3,3-Trimethyl-6'-Nitrospiro[Indoline-2,2'-Thiochromene] is a specialized spirocyclic organic compound belonging to the photochromic and thermochromic dye class. This compound matters for its unique molecular structure that enables reversible color changes upon exposure to specific stimuli, making it a valuable intermediate for advanced functional materials. Industries involved in the research and production of smart coatings, optical data storage, and photochromic lenses require this high-purity chemical for developing next-generation responsive technologies.

Application

• Photochromic Material Synthesis: A key intermediate for manufacturing dyes used in lenses that darken upon exposure to UV light.
• Thermochromic Inks & Coatings: Used in the development of color-changing pigments for security printing, packaging, and temperature-sensitive indicators.
• Molecular Switches & Sensors: Serves as a building block in organic electronics and chemosensors due to its reversible structural isomerization.
• Optical Data Storage Media: Research component for high-density, rewritable optical memory devices leveraging its photochromic properties.
• Advanced Polymer Composites: Incorporated into polymers to create smart materials with light-responsive characteristics for automotive and architectural applications.
• Academic & Industrial R&D: A crucial reference standard and starting material for synthetic chemistry research in photochromism and dye chemistry.

Basic Information

Product Name	8'-Methoxy-1,3,3-Trimethyl-6'-Nitrospiro[Indoline-2,2'-Thiochromene]
CAS No.	92990-74-4
Molecular Formula	C20H20N2O3S
Molecular Weight	368.45 g/mol
Synonyms	6'-Nitro-8'-methoxy-1,3,3-trimethylspiro[indoline-2,2'-[2H]thiochromene]; 6'-Nitro-8'-methoxy-1,3,3-trimethylspiro[indoline-2,2'-thiochromene]; 8'-Methoxy-1,3,3-trimethyl-6'-nitrospiro[indoline-2,2'-thiochromene]; Spiro[1,3-dihydro-1,3,3-trimethyl-2H-indole-2,2'-[2H]thiochromene], 8'-methoxy-6'-nitro-; Photochromic Spirothiochromene Derivative; Light-Sensitive Spiro Compound
EINECS	Contact for details

Quality Control

Our production of 8'-Methoxy-1,3,3-Trimethyl-6'-Nitrospiro[Indoline-2,2'-Thiochromene] adheres to a stringent quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure compliance with exacting customer specifications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency for your critical R&D and manufacturing processes.

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 compound is light-sensitive (store away from light) and should be handled under an inert atmosphere when appropriate to prevent degradation. Keep away from strong oxidizing agents.

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%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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