4-methylumbelliferone
Structural formula | ||||||||||||||||||||||
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General | ||||||||||||||||||||||
Non-proprietary name | Hymecromon | |||||||||||||||||||||
other names |
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Molecular formula | C 10 H 8 O 3 | |||||||||||||||||||||
Brief description |
white to yellowish crystals |
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Drug information | ||||||||||||||||||||||
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properties | ||||||||||||||||||||||
Molar mass | 176.17 g · mol -1 | |||||||||||||||||||||
Physical state |
firmly |
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Melting point |
194-195 ° C |
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pK s value |
7.83 |
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solubility |
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safety instructions | ||||||||||||||||||||||
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Toxicological data | ||||||||||||||||||||||
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
4-methylumbelliferone or hymecromone ( INN ) is a methyl - derivative of umbelliferone .
It is used as a medicinal substance (as a choleretic and musculotropic antispasmodic ) and as a light or sunscreen , as it absorbs UV radiation . It is also used in fluorescence analysis. It is often used in the form of esters , which are then cleaved by the esterases . Often used is 4-methylumbelliferyl heptanoate , which is abbreviated to MUH.
Trade names
Cholspasmin (D), Chol-Spasmoletten (D), Unichol (A)
Individual evidence
- ↑ HPT Ammon (Ed.): Hunnius Pharmaceutical Dictionary . 9th edition. Walter de Gruyter, Berlin a. New York 2004, pp. 752-753.
- ↑ a b c d Entry on Hymecromon. In: Römpp Online . Georg Thieme Verlag, accessed on May 1, 2014.
- ↑ a b Data sheet 4-Methylumbelliferone from Sigma-Aldrich , accessed on April 4, 2011 ( PDF ).
- ↑ Data sheet HYMECROMONE CRS (PDF) at EDQM , accessed on July 31, 2008.
- ↑ Red List, as of August 2009.
- ↑ AGES-PharmMed, as of August 2009.