7-Diethylamino-4-methylcoumarin CAS#91-44-1
Excellent Fluorescent Brightening Performance: Effectively enhances whiteness and brightness in textile and paper applications, delivering strong luminosity improvement.
Stable and Reliable Photophysical Properties: Features distinct absorption and emission spectra, ensuring consistent and dependable fluorescence performance.
Wide Applicability in Industry and Research: Suitable for industrial use as a brightening agent and for academic research in fluorescence-based analytical techniques.
Good Solubility and High Product Consistency: Easily soluble in organic solvents and manufactured with a precise molecular structure for stable quality and performance.
Products Description of 7-Diethylamino-4-methylcoumarin CAS#91-44-1
7-Diethylamino-4-methylcoumarin is an important organic compound with a wide range of applications. It is mainly used as a fluorescent brightener in the textile and paper industries, where it effectively improves the whiteness and brightness of materials. Practical cooperation cases demonstrate its successful use in enhancing the luminosity of various products, highlighting its proven performance in real applications.
7-Diethylamino-4-methylcoumarin Chemical Properties
Melting point | 72-75 °C (lit.) |
Boiling point | 240 °C / 6.5mmHg |
density | 1.122 |
vapor pressure | 0-0.003Pa at 20-25℃ |
refractive index | 1.5300 (estimate) |
Fp | 152°C |
storage temp. | Sealed in dry,Room Temperature |
solubility | Chloroform (Slightly), Methanol (Slightly) |
pka | 3.51±0.20(Predicted) |
form | Crystalline Powder |
color | Light beige to light purple |
Water Solubility | slightly soluble |
BRN | 193303 |
Stability: | Stable. Incompatible with strong oxidizing agents. |
InChIKey | AFYCEAFSNDLKSX-UHFFFAOYSA-N |
LogP | 2.523-2.8 at 23-25℃ |
CAS DataBase Reference | 91-44-1(CAS DataBase Reference) |
NIST Chemistry Reference | Coumarin, 7-(diethylamino)-4-methyl-(91-44-1) |
EPA Substance Registry System | 7-Diethylamino-4-methylcoumarin (91-44-1) |
Safety Information
Hazard Codes | Xn |
Risk Statements | 36/37/38-20/21 |
Safety Statements | 37/39-26 |
WGK Germany | 2 |
RTECS | GN6370000 |
TSCA | Yes |
HS Code | 29322090 |
Hazardous Substances Data | 91-44-1(Hazardous Substances Data) |
Toxicity | LD50 oral in rat: 5gm/kg |
In academic research, this compound attracts considerable interest due to its photophysical characteristics, contributing to progress in fluorescence-based analytical technologies. From a manufacturing perspective, we provide a stable and reliable supply, supported by a well-defined molecular structure that ensures consistent performance. Its key features include a bright yellow appearance, good solubility in organic solvents, and distinctive absorption and emission spectra, confirming its value as an efficient fluorophore for both industrial and research purposes.



