Food Red 4

CAS: 2302-96-7

Ref. 3D-CAA30296

Product Information

• Name: Food Red 4
• Synonyms: 1-Naphthalenesulfonic acid, 4-[(2-hydroxy-6-sulfo-1-naphthalenyl)azo]-, disodium salt, 1-Naphthalenesulfonic acid, 4-[2-(2-hydroxy-6-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:2), 1869 Red, Acid Leather Red IBW, Acid Red 13, Acidal Red E, Acidol Red E, Acilan Red E, Brilliant Ponceau 3RF extra, Certicol Fast Red E, Cherry Red A Geigy, Cilefa Red E, Crispin Fast Red E, Dalf Fast Red, Fast Red E, Fast Red EA, Fast Red Specially Pure, HD Fast Red E, HD Fast Red E Supra, Hexacol Fast Red E, Hexalan Fast Red E, Hispacid Fast Red E, Naphthalene Red EA, Naphthionic Red A, Neklacid Fast Red E, Neklacid Red E, Red E for Food, Tertracid Red E, disodium 4-[(2Z)-2-(2-oxo-6-sulfonatonaphthalen-1(2H)-ylidene)hydrazinyl]naphthalene-1-sulfonate, C.I. 16045, C.I. Food Red 4, C.I. Acid Red 13, disodium salt, C.I. Acid Red 13, disodium salt (8CI), C.I. Acid Red 13, C.I. Acid Red 13 (7CI), C.I. Acid Red 13, disodium salt, C.I. Acid Red 13

Description

Food Red 4 is a synthetic red dye that is soluble in organic solvents. It can be used as a food, drug, and cosmetic additive. The dye has been shown to have high binding constants for both metal ions and carbon nanotubes. A Langmuir adsorption isotherm was used to determine the equilibrium adsorption of this dye onto polyvinyl monomeric particles. The electron microscopic analysis showed average particle diameters of ˜1 μm. This dye has been synthesized using an azobenzene monomer and a polymer film.

• Brand: Biosynth

Chemical properties

• Molecular weight: 504.45 g/mol
• Formula: C₂₀H₁₄N₂O₇S₂•Na₂
• Purity: Min. 95%
• Color/Form: Powder