| Product Name | crystal scarlet (acid red 44) |
| CAS No. | 2766-77-0 |
| Synonyms | C.I. 16250; C.I. Acid Red 44; C.I. Acid Red 44, disodium salt (8CI); crystal ponceau 6R; sodium 6-hydroxy-5-(1-naphthylazo)naphthalene-2,4-disulphonate; brillant crystal scarlett; Crystal Ponceau?R; disodium (8Z)-8-[2-(naphthalen-1-yl)hydrazinylidene]-7-oxo-7,8-dihydronaphthalene-1,3-disulfonate |
| InChI | InChI=1/C20H14N2O7S2.2Na/c23-17-9-8-13-10-14(30(24,25)26)11-18(31(27,28)29)19(13)20(17)22-21-16-7-3-5-12-4-1-2-6-15(12)16;;/h1-11,21H,(H,24,25,26)(H,27,28,29);;/q;2*+1/p-2/b22-20+;; |
| Molecular Formula | C20H12N2Na2O7S2 |
| Molecular Weight | 502.428 |
| Melting point | 300℃ |
2766-77-0 crystal scarlet (acid red 44)
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