Description

1-Methyl-2,6-Bis(p-Dimethylamino-Styryl)-Pyridinium-Iodide is a specialized cationic dye and fluorescent probe belonging to the styryl pyridinium class. This compound matters for its exceptional photophysical properties, including high molar absorptivity and strong fluorescence, making it a critical component in advanced optical applications. It is primarily needed by researchers and manufacturers in the fields of nonlinear optics (NLO), photodynamic therapy (PDT) research, and as a sensitizer in photographic emulsions.

Application

• Nonlinear Optical (NLO) Materials: A key chromophore for developing materials with second- and third-order nonlinear optical properties for use in optical switching, modulation, and data storage.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer due to its ability to generate reactive oxygen species upon light activation for targeted cell studies.
• Photographic Sensitizers: Used in specialized photographic emulsions to extend spectral sensitivity.
• Fluorescent Labeling & Probes: Serves as a fluorescent marker in biochemical and biophysical research for staining and detection applications.
• Laser Dyes & Optical Filters: Employed in the formulation of tunable dye lasers and in the creation of specific optical filters.
• Organic Light-Emitting Diodes (OLEDs): Explored as an emissive or charge-transport material in OLED research and development.
• Academic & Industrial R&D: A fundamental reagent for synthetic chemistry and material science research focused on functional dyes and advanced organic materials.

Basic Information

Item	Details
Product Name	1-Methyl-2,6-Bis(p-Dimethylamino-Styryl)-Pyridinium-Iodide
CAS No.	3785-05-5
Molecular Formula	C27H32IN3
Molecular Weight	533.47 g/mol
Synonyms	1-Methyl-2,6-bis[4-(dimethylamino)styryl]pyridinium iodide; 2,6-Bis[4-(dimethylamino)styryl]-1-methylpyridinium iodide; DASPMI (common abbreviation); 4-(Dimethylamino)styryl pyridinium dye; Pyridinium, 1-methyl-2,6-bis[4-(dimethylamino)styryl]-, iodide; ASDP; Styryl 9; Potential trade names: LDS 722, LDS 730 (related dyes)
EINECS	Contact for details

Quality Control

Our production of 1-Methyl-2,6-Bis(p-Dimethylamino-Styryl)-Pyridinium-Iodide adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for purity, UV-Vis and fluorescence spectroscopy for photophysical property verification, and elemental analysis. A detailed Certificate of Analysis (COA) specifying identity, purity, and relevant physical data is provided with every shipment to support your research and quality assurance requirements.

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); therefore, the container must be kept tightly sealed in a dry environment to prevent absorption of atmospheric moisture, which can affect purity and performance. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	Dark green to bronze crystalline powder
Identification (IR)	Conforms to structure
Identification (UV-Vis)	Conforms
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
λmax (Absorption)	~ 430 - 450 nm (Solvent dependent)
Fluorescence λmax	~ 550 - 600 nm (Solvent dependent)

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