| Identification | |
| Name: | 1-Naphthalenesulfonicacid, 3-[2-(2,4-dimethyl-5-sulfophenyl)diazenyl]-4-hydroxy-, sodium salt (1:2) |
| Synonyms: | 1-Naphthalenesulfonicacid, 3-[(2,4-dimethyl-5-sulfophenyl)azo]-4-hydroxy-, disodium salt (9CI); C.I.Food Red 1 (7CI); C.I. Food Red 1, disodium salt (8CI); Ponceau SX (6CI); 12101Red; 1306 Red; C.I. 14700; Certicol Ponceau SXS; D and C Red No. 4; EdicolSupra Ponceau SX; FD and C Red No. 4; FD&C Red No. 4; FDC Red 4; Food Red1; Food Red 4; Hexacol Ponceau SX; Japan Red 4; Japan Red 504; Japan Red No. 4;Japan Red No. 504; Red 4; Red No. 1; Red No. 504; Usacert Red No. 4 |
| CAS: | 4548-53-2 |
| EINECS: | 224-909-9 |
| Molecular Formula: | C18H16 N2 O7 S2 . 2 Na |
| Molecular Weight: | 480.44 |
| InChI: | InChI=1/C18H16N2O7S2.2Na/c1-10-7-11(2)16(28(22,23)24)8-14(10)19-20-15-9-17(29(25,26)27)12-5-3-4-6-13(12)18(15)21;;/h3-9,19H,1-2H3,(H,22,23,24)(H,25,26,27);;/q;2*+1/p-2 |
| Molecular Structure: | ![(C18H16N2O7S2.2Na) 1-Naphthalenesulfonicacid, 3-[(2,4-dimethyl-5-sulfophenyl)azo]-4-hydroxy-, disodium salt (9CI); C.I....](https://img1.guidechem.com/chem/e/dict/23/4548-53-2.jpg) |
| Properties | |
| Flash Point: | °C |
| Boiling Point: | °Cat760mmHg |
| Density: | g/cm3 |
| Specification: |
Disodium3-[(2,4-dimethyl-6-sulfonatophenyl)hydrazinylidene]-4-oxonaphthalene-1-sulfonatewith CAS number of 4548-53-2 is also known as Ponceau SX ; 12101Red ; 1306Red ; 2-(6-Sulfo-2,4-xylylazo)-1-naphthol-4-sulfonicacid,disodiumsalt ; 2-(6-sulpho-2,4-xylylazo)-1-naphthol-4-sulphonicacid,disodiumsalt ; 3-((2,4-dimethyl-5-sulfophenyl)azo)-4-hydroxy-1-naphthalenesulfonicacid,dis ; 3-((2,4-dimethyl-5-sulphophenyl)azo)-4-hydroxy-1-naphthalenesulphonicacid,d ; 3-[(2,4-dimethyl-5-sulfophenyl)azo]-4-hydroxy-1-naphthalenesulfonicacidis . Ponceau SX is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. |
| Flash Point: | °C |
| Safety Data | |
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