Description

4-[7-(Diethylamino)-2-Oxo-2H-1-Benzopyran-3-Yl]-1-Methylpyridinium Methyl Sulphate is a specialized coumarin-based dye salt, recognized for its unique photophysical properties. This compound matters for its role as a key intermediate and functional material in advanced photonic and sensing applications. It is primarily needed by manufacturers in the research chemical, specialty dye, and advanced material sectors for developing optical brighteners, laser dyes, and molecular probes.

Application

• Laser Dye Intermediate: Used in the synthesis of tunable laser dyes for scientific and medical laser systems.
• Fluorescent Probe Synthesis: Serves as a precursor for creating sensitive fluorescent probes in biochemical and cellular imaging.
• Optical Brightening Agent (OBA): Employed in the development of high-performance optical brighteners for paper, textiles, and plastics.
• Non-Linear Optical (NLO) Materials: A building block for organic materials used in photonics and optoelectronic devices.
• Sensitizer in Photopolymerization: Acts as a photoinitiator or co-initiator in UV-curable coatings, inks, and adhesives.
• Research & Development: A valuable reference standard and synthetic target for academic and industrial research in dye chemistry and photophysics.

Basic Information

Product Name	4-[7-(Diethylamino)-2-Oxo-2H-1-Benzopyran-3-Yl]-1-Methylpyridinium Methyl Sulphate
CAS No.	55470-53-6
Molecular Formula	C22H28N2O6S
Molecular Weight	448.53 g/mol
Synonyms	7-(Diethylamino)-3-(1-methyl-4(1H)-pyridinylidene)-2H-1-benzopyran-2-one methyl sulfate; Coumarin 1 Methyl Sulfate; 3-(1-Methyl-4(1H)-pyridinylidene)-7-(diethylamino)-2H-1-benzopyran-2-one methyl sulfate; C1 Methyl Sulfate; Basic Yellow 40 salt; 4-[7-(Diethylamino)-2-oxo-2H-chromen-3-yl]-1-methylpyridin-1-ium methyl sulfate
EINECS	Contact for details

Quality Control

Our 4-[7-(Diethylamino)-2-Oxo-2H-1-Benzopyran-3-Yl]-1-Methylpyridinium Methyl Sulphate is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting research and industrial grade specifications. Comprehensive Certificates of Analysis (COA) documenting all critical parameters are available upon request.

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 hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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