Ponceau 4R（酸性红 18）是一种合成着色剂，可用作食用色素。
| Cas No. | 2611-82-7 |
| 别名 | 胭脂红; Acid Red 18; New Coccine |
| Canonical SMILES | O=S(C1=C2C(/N=N/C3=C4C=CC=CC4=C(S(=O)([O-])=O)C=C3)=C(O)C=CC2=CC(S(=O)([O-])=O)=C1)([O-])=O.[Na+].[Na+].[Na+] |
| 分子式 | C20H11N2Na3O10S3 |
| 分子量 | 604.47 |
| 溶解度 | Water : ≥ 100 mg/mL (165.43 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 | Ponceau 4R is a synthetic colourant that may be used as a food colouring. onceau 4R is a strawberry red azo dye which can be used in a variety of food products, and is usually synthesized fromaromatic hydrocarbons; it is stable to light, heat, and acid but fades in the presence of ascorbic acid. |
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