Sunset Yellow FCF (Food Yellow 3) (Orange Yellow S) 是一种石油衍生的橙色偶氮染料，在 pH 1 时的最大吸收波长约为 480 nm，pH 13 时的最大吸收波长为 443 nm。
| Cas No. | 2783-94-0 |
| 别名 | 日落黄,Orange Yellow S; Food Yellow 3; CI 15985 |
| Canonical SMILES | O=S(C1=CC=C2C(/N=N/C3=CC=C(S(=O)([O-])=O)C=C3)=C(O)C=CC2=C1)([O-])=O.[Na+].[Na+] |
| 分子式 | C16H10N2Na2O7S2 |
| 分子量 | 452.37 |
| 溶解度 | Water : ≥ 100 mg/mL (221.06 mM) |
| 储存条件 | Store at -20°C |
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while. |
| Shipping Condition | Evaluation sample solution : ship with blue ice
All other available size: ship with RT , or blue ice upon request |
| 产品描述 | Sunset Yellow FCF is a petroleum-derived orange azo dye with a pH dependent maximum absorption at about 480 nm at pH 1 and 443 nm at pH 13. Sunset Yellow is used in food, cosmetics, and drugs. |
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