Matricin
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Matricin | |||||||||||||||
other names |
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Molecular formula | C 17 H 22 O 5 | |||||||||||||||
Brief description |
colorless crystals |
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properties | ||||||||||||||||
Molar mass | 306.36 g mol −1 | |||||||||||||||
Physical state |
firmly |
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Melting point |
158-160 ° C |
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solubility |
soluble in chloroform |
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safety instructions | ||||||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Matricin is a colorless, crystalline active ingredient from the single flowers of the real chamomile , which contains up to 0.15%. It was isolated for the first time in 1957 and its constitution was determined.
The suspected structure as sesquiterpene lactone was confirmed in 1982 by NMR measurements. Matricin acts as chamazulene , in which it is in steam distillation with elimination of acetic acid , water and CO 2 converts, antiphlogistic .
Formation of chamazulene
During the steam distillation, the Matricin ( 1 ) first splits off a molecule of acetic acid and water; the chamazulene carboxylic acid is formed ( 2 ). On further heating, this is decarboxylated to chamazulene ( 3 ) :
While the starting material matricin is colorless, the chamazulene carboxylic acid and the end product chamazulene have a deep, blue-violet color.
Individual evidence
- ↑ a b c Entry on Matricin. In: Römpp Online . Georg Thieme Verlag, accessed on June 13, 2014.
- ↑ a b c Rudolf Hansel, Otto Sticher: Pharmakognosie - Phytopharmazie. 9th edition, Springer, Heidelberg 2009, ISBN 978-3-642-00962-4 , pp. 999-1004.
- ↑ Shmuel Yannai (Ed.): Dictionary of food compounds with CD-ROM: additives, flavors, and ingredients. Chapman & Hall / CRC Press, 2004, ISBN 978-1-58488-416-3 , p. 323.
- ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
- ↑ V. Jakovlev, O. Isaac, E. Flaskamp: Pharmacological studies of chamomile ingredients - studies on the anti-inflammatory effect of chamazulene and matricin , In: Planta Medica , Vol. 49, 1983, 67-73.