Products Description
7-Diethylamino-4-methylcoumarin is an important organic fluorescent compound with a wide range of applications, particularly as a fluorescent brightening agent in the textile and paper industries. It is used to enhance the whiteness and brightness of various materials, improving their overall visual appearance. Its practical applications demonstrate its effectiveness in increasing the luminosity of different industrial products.
In scientific research, 7-Diethylamino-4-methylcoumarin is widely studied for its distinctive photophysical and fluorescence properties, making it a valuable compound in the development of fluorescence-based analytical techniques. Its well-defined molecular structure and consistent product quality support reliable performance in both industrial and laboratory applications.
Key characteristics of this compound include its yellow appearance, good solubility in organic solvents, and characteristic light absorption and emission spectra. These properties make it a useful fluorophore for applications in fluorescence research, analytical chemistry, and optical materials development.

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 |