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Food safety and quality
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| |
| Flavouring |
2,4-Dihydroxybenzoic acid |
| Synonym(s) |
beta-Resorcylic acid |
| Latest JECFA evaluation |
2001 (Session 57) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
2,4-Dihydroxybenzoic acid |
| JECFA number |
908 |
| CAS number |
89-86-1 |
| FEMA number |
3798 |
| COE number |
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| FLAVIS number |
|
| Molecular weight |
154.12 |
| Chemical formula |
C7H6O4 |
| Physical form/odour |
hydrated white crystals with a faint phenolic odour |
| Solubility |
soluble in hot water, organic solvents, oils |
| Solubility in ethanol |
soluble |
| Boiling point (°C) |
NA |
| Assay min % |
97% (by chemical analysis) |
| Acid value max |
|
| Refractive index |
NA |
| Specific gravity |
NA |
| Other requirements |
mp: 225° (decomposes, rapid heating required) |
| ID Test |
IR |
| Spectrum |
 
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![](../typo3conf/ext/dyna_fef/download.php?dfile=/work/htdocs/disseminationtypo3/web/fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/908.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/908.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/908.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/908.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/908.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/908.gif" width="60px;"></a><br>)