| Identification | Back Directory | [Name]
disodium 6-hydroxy-5-[(3-sulphonatophenyl)azo]naphthalene-2-sulphonate | [CAS]
2347-72-0 | [Synonyms]
E 111
CI 15980
ORANGEGGN
FOODORANGE2
CIFOODORANGE2
C.I.Food Orange 2:C.I.15980
disodium 6-hydroxy-5-[(3-sulphonatophenyl)azo]naphthalene-2-sulphonate
6-Hydroxy-5-[(3-sulfophenyl)azo]-2-naphthalenesulfonic acid disodium salt
2-Naphthalenesulfonic acid, 6-hydroxy-5-(3-sulfophenyl)azo-, disodium salt
6-Hydroxy-5-(m-sodiooxysulfonylphenylazo)-2-naphthalenesulfonic acid sodium salt
2-Naphthalenesulfonicacid, 6-hydroxy-5-[2-(3-sulfophenyl)diazenyl]-, sodium salt (1:2) | [EINECS(EC#)]
219-073-7 | [Molecular Formula]
C16H10N2Na2O7S2 | [MDL Number]
MFCD27963387 | [MOL File]
2347-72-0.mol | [Molecular Weight]
452.369 |
| Hazard Information | Back Directory | [Description]
CI 15980 is classed chemically as a monoazo colour. | [Preparation]
3-Aminobenzenesulfonic acid diazo, and 6-Hydroxynaphthalene-2-sulfonic acid coupling. | [Properties and Applications]
bright orange. Soluble in water for golden brown, slightly soluble in ethanol for light golden brown. The strong sulfuric acid in orange, orange for gold after diluted. The dye solution to join strong hydrochloric acid for golden brown; Add thick sodium hydroxide solution for red light orange brown. |
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