柠檬黄（酸性黄 23）是一种合成柠檬黄偶氮染料，主要用作食用色素。
| Cas No. | 1934-21-0 |
| 别名 | 酒石黄; Acid Yellow 23; FD&C Yellow No. 5 |
| Canonical SMILES | O=C(C(C1N=NC2=CC=C(S(=O)([O-])=O)C=C2)=NN(C3=CC=C(S(=O)([O-])=O)C=C3)C1=O)[O-].[Na+].[Na+].[Na+] |
| 分子式 | C16H9N4Na3O9S2 |
| 分子量 | 534.36 |
| 溶解度 | DMSO : 10 mg/mL (18.71 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 | Tartrazine is a synthetic lemon yellow azo dye primarily used as a food coloring. Tartrazine is water-soluble and has a maximum absorbance in an aqueous solution at 425 nm. |
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