Description

1',3',3'-Trimethyl-6-Hydroxyspiro(2H-1-Benzopyran-2,2'-Indoline) is a high-purity organic compound belonging to the spirooxazine class, known for its photochromic properties. This compound is critical for applications requiring precise light-responsive behavior and molecular switching. It is primarily utilized by manufacturers in the advanced materials, optical data storage, and specialty chemical synthesis sectors.

Application

• Photochromic Lenses and Films: A key precursor or active component in formulations for sunglasses, ophthalmic lenses, and smart windows that darken upon exposure to UV light.
• Optical Data Storage Media: Used in the development of rewritable optical discs and holographic memory systems due to its reversible photoisomerization.
• Molecular Switches and Sensors: Employed in research and development of light-activated molecular machines, logic gates, and chemical sensors.
• Security Inks and Dyes: Incorporated into inks for anti-counterfeiting applications on banknotes, documents, and high-value products, where color change under UV light provides authentication.
• Novel Polymer Systems: Serves as a functional monomer or additive to create polymers with tunable optical properties for advanced coatings and composites.
• Academic and Industrial R&D: A vital reagent for studying photochromism, reaction kinetics, and developing new photoresponsive materials.

Basic Information

Product Name	1',3',3'-Trimethyl-6-Hydroxyspiro(2H-1-Benzopyran-2,2'-Indoline)
CAS No.	23001-29-8
Molecular Formula	C19H19NO2
Molecular Weight	293.36 g/mol
Synonyms	6-Hydroxy-1',3',3'-trimethylspiro[2H-1-benzopyran-2,2'-indoline]; Spiro[2H-1-benzopyran-2,2'-indoline], 6-hydroxy-1',3',3'-trimethyl-; Photochromic Spirooxazine; 6-Hydroxy BIPS; 6-HO-BIPS; 1,3,3-Trimethyl-6'-hydroxyspiro[indoline-2,3'-[3H]naphth[2,1-b][1,4]oxazine]; 6-Hydroxy-1,3,3-trimethylspiro[indoline-2,3'-[3H]naphth[2,1-b][1,4]oxazine]
EINECS	Contact for details

Quality Control

Our 1',3',3'-Trimethyl-6-Hydroxyspiro(2H-1-Benzopyran-2,2'-Indoline) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and spectrophotometry for photochromic performance. Certificates of Analysis (COA) detailing all specifications are provided to ensure traceability and compliance with your research or production requirements.

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). Due to its light-sensitive nature, handling and packaging should be conducted under subdued light or amber containers to prevent premature degradation of the photochromic properties.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Photochromic Performance (δA)	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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