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4-Methylumbelliferone Structure

4-Methylumbelliferone

Chemical Properties

Melting point 188.5-190 °C(lit.)
Boiling point 267.77°C (rough estimate)
Density  1.1958 (rough estimate)
refractive index  1.5036 (estimate)
storage temp.  2-8°C
solubility  Practically insoluble in water; slightly soluble in ethanol, ether,chloroform; soluble inmethanol
form  Crystalline Powder
pka 7.79(at 25℃)
color  off-white to yellow
PH Range Green 1 uorescent (0.0) to weak blue 1 uorescent (2.0);Weak blue 1 uorescent (6.5) blue 1 uorescent (8.0)
Water Solubility  slightly soluble
λmax 221nm, 251nm, 322nm
Merck  14,4854
BRN  142217
Stability Stable. Combustible. Incompatible with strong oxidizing agents.
Major Application color filter, electroluminescent displays, document security processes, lasers, integrated circuits, liquid crystal displays, surface brightening composition, oil products, teeth whitening agent, lysosomal enzyme assay, substrate for lipase, determining protein-protein-interactions in living cells, Antitrypanosomal, antileishmanial, anticancer, antiHIV, antimalarial, antibacterial, antifungal
InChIKey HSHNITRMYYLLCV-UHFFFAOYSA-N
LogP 2.370 (est)
CAS DataBase Reference 90-33-5(CAS DataBase Reference)
NIST Chemistry Reference Coumarin, 7-hydroxy-4-methyl-(90-33-5)
EPA Substance Registry System 4-Methylumbelliferone (90-33-5)

Safety Information

Hazard Codes  Xi,Xn
Risk Statements  36/37/38-20/21/22
Safety Statements  26-37/39-36
WGK Germany  2
RTECS  GN7000000
Hazard Note  Irritant
TSCA  Yes
HS Code  29329990
Toxicity LD50 oral in rat: 3850mg/kg

MSDS

Usage And Synthesis

Preparation Products And Raw materials

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