CAS number：3734-67-6 molecular formula：C18H13N3Na2O8S2
溶于水为大红色溶液，微溶于酒精和溶纤素，不溶于其他有机溶剂。遇浓硫酸呈蓝光红色，将其稀释后呈较黄的红色；遇浓硝酸呈桔红色溶液，后转橙色；遇浓盐酸生成红色沉淀，稀释后即溶解。其水溶液加浓盐酸呈红色；加氢氧化钠液呈桔棕色。染色时遇铜离子使色泽带蓝光而暗；遇铁离子色泽带蓝光而浅。匀染性好。Colour Index Number 18050 A useful stain with color index of 18050. A useful stain with color index of 18050.
| Chinese alias | 酸性红1 | ||
| English alias | (EZ)-azophloxine | Kiton Red 2G | Leather Red G | Acid Naftol Red G | Acidine Red G | Azophloxin | C. I. Food Red 10 | FABRACID RED S 2G | NSC 8666 | Red 2G, analytical standard | Azophloxine | Azo Phloxine | Fast Crimson GR | Red 2G | C.I. Food Red 10 | | ||
| CAS number | 3734-67-6 | molecular formula | C18H13N3Na2O8S2 |
| molecular weight | 509.42 g/mol | Exact mass | Dye content 90 % |
| PSA | 205.000 Ų | logp | - |
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