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Gum guaicum, or guaiac resin,[2] is a substance produced from the tree species Guaiacum officinale. It is registered as food additive: as a preservative under the E number E241, and as an antioxidant under E314.[3]
| Names | |
|---|---|
| Other names
Guaiac resin; Gum guaiac | |
| Identifiers | |
| ECHA InfoCard | 100.029.566 |
| EC Number |
|
| E number | E314 (antioxidants, ...) |
| UNII | |
| Properties | |
| Melting point | 85–90 °C (185–194 °F; 358–363 K)[1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |
Guaiac resin is also used medically for the stool guaiac test.
Chemically, it is mixture of approximately 70% alpha- and beta-guaiaconic acids, 10% guaiaretic acid, 15% guaiac beta-resin, and small quantities of other chemical compounds such as guaiac yellow and vanillin.[2]
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