Description

Methyl-(5-[n-Methyl-n-Phenylamino]-2,4-Pentadienylidene)-Phenylammonium Chloride is a specialized cationic dye intermediate and a polymethine cyanine dye salt. This compound matters for its role as a key precursor in the synthesis of advanced functional dyes and pigments, offering precise color properties and stability. Industries requiring high-performance colorants, such as optical data storage media, photographic sensitizers, and specialized analytical reagents, rely on this chemical for its consistent quality and performance.

Application

• Optical Data Storage Media: A critical precursor for cyanine dyes used in recordable CD-R and DVD-R discs.
• Photographic Sensitizers: Used in the formulation of sensitizing dyes for silver halide photographic films and papers.
• Laser Dyes & Non-linear Optics: Serves as a building block for dyes used in tunable lasers and optical limiting applications.
• Analytical Chemistry & Bioimaging: Employed in the synthesis of fluorescent probes and stains for biological labeling and detection.
• Specialty Inks & Coatings: Used in the development of high-security inks and functional coatings requiring specific light-absorption properties.
• Academic & Industrial Research: A valuable reagent for synthetic organic chemistry research focused on polymethine and cyanine dye systems.

Basic Information

Product Name	Methyl-(5-[n-Methyl-n-Phenylamino]-2,4-Pentadienylidene)-Phenylammonium Chloride
CAS No.	13984-07-1
Molecular Formula	C20H23ClN2
Molecular Weight	326.86 g/mol
Synonyms	Basic Yellow 11; C.I. 48055; Astrazon Yellow 7GLL; Aizen Cathilon Yellow 7GLH; 1-Methyl-4-[(1-methyl-4(1H)-pyridinylidene)phenylamino]-2,4-pentadien-1-ylidene]phenylammonium chloride; 4-[(1-Methyl-4(1H)-pyridinylidene)phenylamino]-2,4-pentadien-1-ylidene]-1-methylphenylammonium chloride; Cationic Yellow 7GLL; Pyridinium, 1-methyl-4-[(1-methyl-4(1H)-pyridinylidene)phenylamino]-2,4-pentadien-1-ylidene]-, chloride
EINECS	Contact for details

Quality Control

Our production of Methyl-(5-[n-Methyl-n-Phenylamino]-2,4-Pentadienylidene)-Phenylammonium Chloride adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity, essential for sensitive applications like optical media and analytical reagents. Each lot is tested against comprehensive specifications, including identity, assay, and impurity profile. Certificates of Analysis (COA) documenting these results are provided to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark green to brownish-green crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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