RARECHEM AH PB 0251 90-33-5 C10H8O3
4-Methylumbelliferone Basic information |
Product Name: | 4-Methylumbelliferone |
Synonyms: | 2H-1-Benzopyran, 7-hydroxy-4-methyl-2-oxo-;2H-1-Benzopyran-2-one, 7-hydroxy-4-methyl-;2H-1-Benzopyren-2-one, 7-hydroxy-4-methyl-;4-Methylumbelliferon;4-Metylumbelliferone;7-hydroxy-4-methyl-2h-1-benzopyran-2-on;7-Hydroxy-4-methyl-2H-1-benzopyran-2-one;7-hydroxy-4-methyl-2h-1-benzopyren-2-on |
CAS: | 90-33-5 |
MF: | C10H8O3 |
MW: | 176.17 |
EINECS: | 201-986-7 |
Product Categories: | ketone;Aromatics Compounds;Aromatics;Fluorescent Labels & Indicators;intermediate;CANTABILINE |
Mol File: | 90-33-5.mol |
4-Methylumbelliferone Chemical Properties |
mp | 188.5-190 °C(lit.) |
storage temp. | -20°C Freezer |
color | off-white to yellow |
Water Solubility | slightly soluble |
Merck | 14,4854 |
BRN | 142217 |
Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. |
CAS DataBase Reference | 90-33-5(CAS DataBase Reference) |
NIST Chemistry Reference | Coumarin, 7-hydroxy-4-methyl-(90-33-5) |
EPA Substance Registry System | 2H-1-Benzopyran- 2-one, 7-hydroxy-4-methyl-(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 |
MSDS Information |
Provider | Language |
---|---|
7-Hydroxy-4-methylcoumarin | English |
ACROS | English |
SigmaAldrich | English |
ALFA | English |
4-Methylumbelliferone Usage And Synthesis |
Chemical Properties | Off-White to Yellow Crystals |
Usage | Standard for the fluorometric determination of enzyme activity. Highly fluorescent in alkaline solution. Fluorescence: max Abs. l = 360nm, max. Em. l = 449nm; pH > 9 |
Usage | choloretic, spasmolytic, sunscreen |
General Description | Colorless crystals. Insoluble in water. |
Air & Water Reactions | Insoluble in water. |
Fire Hazard | Flash point data for 4-Methylumbelliferone are not available. 4-Methylumbelliferone is probably combustible. |
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