| Definition | |
| Chemical name | Octyl gallate |
| Octyl ester of gallic acid |
| n-octyl ester of 3,4,5-trihydroxybenzoic acid |
| Einecs | 213-853-0 |
| Chemical formula | C15H22O5 |
| Molecular weight | 282,34 |
| Assay | Content not less than 98 % after drying at 90 oC for six hours |
| Description | White to creamy-white odourless solid |
| Identification | |
A.Solubility tests | Insoluble in water, freely soluble in ethanol, ether and propane-1,2-diol |
B.Melting range | Between 99 oC and 102 oC after drying at 90 oC for six hours |
| Purity | |
| Loss on drying | Not more than 0,5 % (90 oC, six hours) |
| Sulphated ash | Not more than 0,05 % |
| Free acid | Not more than 0,5 % (as gallic acid) |
| Chlorinated organic compound | Not more than 100 mg/kg (as C1) |
Specific absorption  in ethanol |  (275 nm) not less than 375 and not more than 390 |
| Arsenic | Not more than 3 mg/kg |
| Lead | Not more than 5 mg/kg |
| Mercury | Not more than 1 mg/kg |
| Heavy metals (as Pb) | Not more than 10 mg/kg |
