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Tel: 86-371-86259723
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CAS NO.90-33-5
1(10-100)Metric Ton1(10-100)Metric Ton
| 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 |
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| 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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