| Synonyms | |
| Definition |
|---|
| Einecs | 204-498-2 |
| Chemical name | Propyl gallate; Propyl ester of gallic acid; n-propyl ester of 3,4,5-trihydroxybenzoic acid |
| Chemical formula | C10H12O5 |
| Molecular weight | 212,2 |
| Assay | Content not less than 98 % on the anhydrous basis |
| Description | White to creamy-white, crystalline, odourless solid |
| Identification |
|---|
| Solubility | Slightly soluble in water, freely soluble in ethanol, ether and propane-1,2-diol |
| Melting range | Between 146 °C and 150 °C after drying at 110 °C for four hours |
| Purity |
|---|
| Loss on drying | Not more than 0,5% (110 °C, 4 hours) |
| Sulphated ash | Not more than 0,1 % |
| 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 485 and not more than 520 |
| Arsenic | Not more than 3 mg/kg |
| Lead | Not more than 2 mg/kg |
| Mercury | Not more than 1 mg/kg |
