| Specification | |
| Product Name | Ponceau 4R |
| Colour Shade |  |
| Synonyms | Food Red 7, New Coccine, Cochineal Red A, Brilliant Scarlet 4R, Brilliant Scarlet 3R |
| Chemical Name | trisodium (8Z)-7-oxo-8-[(4-sulfonatonaphthalen-1-yl)hydrazinylidene]naphthalene-1,3-disulfonate |
| Molecular Formula | --- |
| C.I. No | 16255 |
| C.I. Name | Acid Red 18 |
| EU and FDA Status | Approved | EC Directive 2008/128/EC & FAO/WHO Food & Drug and Nutrition paper 52/1 and 2. |
| CAS No. | 2611-82-7 |
| EINECS No. | 220-036-2 |
| E NUMBER | E-124 |
| Test | EEC (Limit) | |
| Total colouring matters calculated as the sodium salt, percent by mass | Min. | 85 |
| Water insoluble matter, percent by mass | Max. | 0.20 |
| Combined ether extract, percent by mass | Max. | 0.20 |
| Unsulfonated Primary aromatic amines, percent by mass (calculated as aniline) | Max. | 0.01 |
| Subsidiary dyes, percent by mass | Max. | 1 |
|
Total organic compound other than coloring matter, percent by mass 2-naphthol-6,8-di-sulfonic acid 1-naphthylamine-4-sulfonic acid |
Max. | 0.50 |
| Heavy metals as pb(mg/kg.) | Max. | 30 |
| Arsenic, (mg/kg.) | Max. | 3 |
| Lead (mg/kg.) | Max. | 2 |
| Mercury (mg/kg.) | Max. | 1 |
| Cadmium (mg/kg.) | Max. | 1 |
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