Description

1-Methyl-2-[3-(3-Methyl-3H-Benzothiazol-2-Ylidene)Prop-1-Enyl]Quinolinium Iodide is a specialized cyanine dye salt, a high-value intermediate critical for advanced material science and photonics research. Its core value lies in its unique photophysical properties, enabling precise light absorption and emission tuning. This compound is essential for manufacturers and R&D laboratories in the optical recording media, laser dyes, and non-linear optical material sectors, where performance and purity are paramount. CAS NO 60435-31-6.

Application

• Optical Data Storage: A key sensitizer/photosensitizer for high-density recordable optical discs (CD-R, DVD-R).
• Laser Technology: Used as a gain medium or saturable absorber in tunable dye lasers for specific wavelength ranges.
• Non-Linear Optics (NLO): A building block for synthesizing organic materials with second- or third-order optical non-linearity for frequency conversion and optical switching.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer candidate for targeted light-activated therapies.
• Molecular Probes & Sensors: Utilized in the development of fluorescent probes for bio-imaging and chemical sensing due to its modifiable structure.
• Organic Photovoltaic (OPV) Research: Serves as an electron donor or acceptor material in the active layer of experimental solar cells.
• Anti-Counterfeiting Inks: Incorporated into security inks and pigments that exhibit specific optical properties under UV or laser light.

Basic Information

Product Name	1-Methyl-2-[3-(3-Methyl-3H-Benzothiazol-2-Ylidene)Prop-1-Enyl]Quinolinium Iodide
CAS No.	60435-31-6
Molecular Formula	C21H19IN2S
Molecular Weight	458.36 g/mol
Synonyms	1-Methyl-2-[(1E,3E)-3-(3-Methyl-2(3H)-benzothiazolylidene)-1-propen-1-yl]quinolinium Iodide; Quinolinium, 1-methyl-2-[3-(3-methyl-3H-benzothiazol-2-ylidene)-1-propenyl]-, iodide; Cyanine Dye NK-2016; NK-2016; 2-[3-(1-Methyl-2(1H)-quinolinylidene)-1-propenyl]-3-methylbenzothiazolium Iodide; Styryl 9; 1-Methyl-2-[3-(3-methylbenzothiazolin-2-ylidene)propenyl]quinolinium Iodide
EINECS	Contact for details

Quality Control

Every batch of our cyanine dye intermediates is produced and tested under a strict quality management system. We guarantee high chemical purity and lot-to-lot consistency, which is critical for reproducible performance in sensitive optical applications. Comprehensive analytical testing, including HPLC, NMR, and UV-Vis spectroscopy, is performed. A detailed Certificate of Analysis (COA) documenting identity, purity, and key spectral data is provided with each 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). This compound is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to air, moisture, or light may degrade performance. For long-term storage, consider sealing under an inert atmosphere.

Specification

Item	Specification
Appearance	Dark green to bronze crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0% (Area %)
Water Content (KF)	≤ 1.0 %
Residue on Ignition	≤ 0.5 %
UV-Vis (Solution)	λmax conforms to reference (typically ~650-750 nm region)

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