Isovanillic acid
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| Surname | Isovanillic acid | ||||||||||||||||||
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| Molecular formula | C 8 H 8 O 4 | ||||||||||||||||||
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| Molar mass | 168.15 g mol −1 | ||||||||||||||||||
| Physical state |
firmly |
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| Melting point |
250-253 ° C |
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| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . | |||||||||||||||||||
Isovanillic acid ( 3-hydroxy-4-methoxybenzoic acid ) is an organic chemical compound and belongs to the group of phenolic acids . The substance is structurally derived from both benzoic acid and guaiacol ( o -methoxyphenol). It is an isomer to vanillic acid , from which it differs only in the position of the methoxy group . Instead of position 3, this is found here in position 4. The hydroxyl and methoxy groups swap places compared to vanillic acid. Isovanillin can be enzymatically oxidized to isovanillic acid.
Isovanillic acid Vanillic acid
See also
Individual evidence
- ↑ a b c Isovanillic acid data sheet from Sigma-Aldrich , accessed on January 31, 2013 ( PDF ).
- ↑ Georgios I. Panoutsopoulos, Christine Beedham: "Enzymatic Oxidation of Vanillin, Isovanillin and Protocatechuic Aldehyde with Freshly Prepared Guinea Pig Liver Slices", in: Cell Physiol Biochem , 2005 , 15 (1-4), pp. 89-98 ( PMID 15665519 ; PDF ).
Web links
- Entry on isovanillic acid . In: P. J. Linstrom, W. G. Mallard (Eds.): NIST Chemistry WebBook, NIST Standard Reference Database Number 69 . National Institute of Standards and Technology , Gaithersburg MD, accessed December 14, 2012.