| Chemical Name | ACID RED 18 |
| C.I. No. | 16255 |
| CAS No. | 2611-82-7 |
| Synonyms | SCARLET 3R; SCARLET 3R, WATER SOLUBLE;NEW COCCINE; PONCEAU 4R;PONCEAU 4RC; trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4′,6,8-trisulphonate;1-(4-Sulfo-1-naphthylazo)-2-hydroxy-6,8-naphthalenedisulfonicacidtri sodiumsalt; 1-(4-sulpho-1-naphthylazo)-2-naphthol-6,8-disulphonicacid,trisodiumsalt; vermelho 18; rojo 18; rosso 18; 산 레드 18; 酸性红 18; 18 الأحمر الحمضي |
| Molecular Formula | C20H11N2Na3O10S3 |
| Molecular Weight | 604.47 |
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