Sudan I
Sudan I (also commonly known as CI Solvent Yellow 14 and Solvent Orange R) is an organic compound, typically classified as an azo dye. It is an intensely orange-red solid that is added to colourise waxes, oils, petrol, solvents, and polishes. Sudan I has also been adopted for colouring various foodstuffs, especially curry powder and chili powder, although the use of Sudan I in foods is now banned in many countries, because Sudan I, Sudan III, and Sudan IV have been classified as category 3 carcinogens (not classifiable as to its carcinogenicity to humans) by the International Agency for Research on Cancer. Sudan I is still used in some orange-coloured smoke formulations and as a colouring for cotton refuse used in chemistry experiments.
Names | |
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IUPAC name
1-(Phenyldiazenyl)naphthalen-2-ol | |
Identifiers | |
3D model (JSmol) |
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ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.011.517 |
EC Number |
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KEGG | |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C16H12N2O | |
Molar mass | 248.28 g/mol |
Melting point | 131 °C (268 °F; 404 K) |
−1.376×10−4 cm3/mol | |
Hazards | |
GHS labelling: | |
Warning | |
H317, H341, H351, H413 | |
P201, P202, P261, P272, P273, P280, P281, P302+P352, P308+P313, P321, P333+P313, P363, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references |
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