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Ponceau 4R (Acid Red 18) is a synthetic strawberry red azo dye that is a food colorant dye used in a variety of food products. It is stable to light, heat and acid, but fades in the presence of ascorbic acid. It is usually synthesized from aromatic hydrocarbons.
Pack Size | Price | Availability | Quantity |
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1 g | $50 | In Stock |
Description | Ponceau 4R (Acid Red 18) is a synthetic strawberry red azo dye that is a food colorant dye used in a variety of food products. It is stable to light, heat and acid, but fades in the presence of ascorbic acid. It is usually synthesized from aromatic hydrocarbons. |
Alias | New Coccine, Acid Red 18 |
Molecular Weight | 604.46 |
Formula | C20H11N2Na3O10S3 |
Cas No. | 2611-82-7 |
Smiles | O=S([O-])(C1=CC2=CC=C(C(/N=N/C3=CC=C(S(=O)([O-])=O)C4=C3C=CC=C4)=C2C(S(=O)([O-])=O)=C1)O)=O.[Na+].[Na+].[Na+] |
Relative Density. | Ca. 1.772. Temperature:20 °C. |
Storage | keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice. | ||||||||||||||||||||||||||||||
Solubility Information | H2O: 22.5 mg/mL (37.2 mM), Sonication is recommended. DMSO: 9.0 mg/mL (14.9 mM), Sonication and heating to 60℃ are recommended. | ||||||||||||||||||||||||||||||
Solution Preparation Table | |||||||||||||||||||||||||||||||
DMSO/H2O
H2O
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