Description

1,3,3-Trimethylindolino-6'-Bromobenzopyrylospiran is a specialized photochromic and thermochromic organic compound belonging to the spirooxazine class. This high-value chemical is critical for applications requiring precise and reversible color change properties under specific stimuli. It is primarily sought after by manufacturers in the advanced materials, specialty coatings, and optical data storage sectors. The compound, identified by CAS No. 16650-14-9, offers unique performance characteristics for developing smart, responsive products.

Application

• Photochromic Lenses and Films: As a key active ingredient in ophthalmic lenses, sunglasses, and architectural films that darken upon exposure to UV light.
• Smart Packaging and Security Inks: Used in anti-counterfeiting inks, security printing, and novelty packaging where color change acts as a verification or interactive feature.
• Optical Data Storage and Switches: Employed in research and development of high-density optical memory devices and molecular switches due to its reversible photoisomerization.
• Advanced Textiles and Coatings: Incorporated into fibers, paints, and coatings to create color-changing fabrics, automotive paints, or industrial indicators.
• Chemical Sensing and Probes: Utilized in the development of molecular probes and sensors for detecting specific environmental conditions like pH, metal ions, or polarity.
• Research and Development: Serves as a crucial intermediate or reference standard in academic and industrial R&D for novel photonic and electronic materials.

Basic Information

Product Name	1,3,3-Trimethylindolino-6'-Bromobenzopyrylospiran
CAS No.	16650-14-9
Molecular Formula	C23H20BrNO2
Molecular Weight	422.32 g/mol
Synonyms	6'-Bromo-1,3,3-trimethylspiro[indoline-2,3'-[3H]naphth[2,1-b][1,4]oxazine]; 6'-Bromo-1,3,3-trimethylspiro[indoline-2,3'-[3H]phenanthro[9,10-b][1,4]oxazine]; Spirooxazine, 6'-bromo-1,3,3-trimethyl-; Photochromic Spirooxazine; Thermochromic Spirooxazine; BIPS derivative (6'-Br); 6'-Bromo BIPS; 1,3,3-Trimethylindolino-β-naphthospirooxazine (6'-bromo derivative)
EINECS	Contact for details

Quality Control

Our production of 1,3,3-Trimethylindolino-6'-Bromobenzopyrylospiran adheres to stringent quality protocols to ensure batch-to-batch consistency and high performance in sensitive applications. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We operate under a quality management system to meet the exacting standards required for advanced material synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is light-sensitive (store away from light) and should be handled under inert atmosphere when appropriate to prevent degradation. Keep away from strong oxidizing agents.

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%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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