CAS 5858-39-9

acid red 4 (C.I. 14710)

Description:

Acid Red 4, also known by its Color Index number C.I. 14710 and CAS number 5858-39-9, is a synthetic azo dye primarily used in the textile and food industries for coloring purposes. It appears as a red powder or granules and is soluble in water, which makes it suitable for various applications. The dye is characterized by its vibrant red hue and is often utilized in the dyeing of wool, silk, and nylon, as well as in certain food products, although its use in food is subject to regulatory scrutiny in many regions due to potential health concerns. Acid Red 4 exhibits good lightfastness and stability under acidic conditions, but it may be less stable in alkaline environments. As an azo compound, it contains a nitrogen-nitrogen double bond, which is a common feature in many synthetic dyes. Safety considerations include potential allergic reactions and the need for proper handling to avoid inhalation or skin contact. Overall, Acid Red 4 is a versatile dye with specific applications and regulatory considerations.

Formula: C₁₇H₁₄N₂O₅S·Na

InChI: InChI=1S/C17H14N2O5S.Na/c1-24-15-9-5-4-8-13(15)18-19-14-10-16(25(21,22)23)11-6-2-3-7-12(11)17(14)20;/h2-10,20H,1H3,(H,21,22,23);

InChI key: InChIKey=MBKYXXPUYASPFL-UHFFFAOYSA-N

SMILES: S(=O)(=O)(O)C=1C2=C(C(O)=C(N=NC3=C(OC)C=CC=C3)C1)C=CC=C2.[Na]

Synonyms:

• (3E)-3-[(2-methoxyphenyl)hydrazono]-4-oxo-3,4-dihydronaphthalene-1-sulfonic acid
• 1-Naphthalenesulfonic acid, 4-hydroxy-3-[(2-methoxyphenyl)azo]-, monosodium salt
• 1-Naphthalenesulfonic acid, 4-hydroxy-3-[2-(2-methoxyphenyl)diazenyl]-, sodium salt (1:1)
• Acid Eosine G
• Acid Red 4
• Airedale Azo Eosine
• Amacid Eosine
• Atul Acid Fast Pink B
• Atul Acid Scarlet B
• Azo Eosine
• Azo Eosine G
• Azoeosin
• Bucacid Azo Eosine G
• Calcocid Eosine G
• Colocid Fast Scarlet B
• Concorde Acid Eosine G
• Covalene Red E
• Curol Red B
• Dinacid Pink B
• Erio Fast Scarlet B
• Fabracid Red S-EN
• Fast Acid Red E
• Fenazo Red E
• Kiton Eosine GC
• Metamine Fast Acid Red N
• Sodium 4-Hydroxy-3-(2-Methoxyphenylazo)Naphthalenesulphonate
• Sodium 4-hydroxy-3-[(2-methoxyphenyl)azo]-1-naphthalenesulfonate
• Triacid Azoeosine E
• C.I. Acid Red 4, monosodium salt
• Acid Red 4 (C.I.)
• C.I. Acid Red 4
• C.I. Acid Red 4, monosodium salt (8CI)
• C.I. Acid Red 4, monosodium salt
• C.I. 14710
• AZOEOSIN C.I. NO. 14710
• CI 14710
• Azoeosin C.I. No. 14710 (Technical Grade)
• Pink B
• 4-hydroxy-3-[(2-methoxyphenyl)azo]-1-naphthalenesulfonicacimonosodiumsal
• C.I.Acid Red 4:C.I.14710
• 4-Hydroxy-3-[(2-methoxyphenyl)azo]-1-naphthalenesulfonic acid sodium salt
• 1-Naphthalenesulfonicacid,4-hydroxy-3-[(2-methoxyphenyl)azo]-,monosodiumsalt
• AZO EOSIN
• acidred4(c.i.14710)

Azoeosin C.I. No. 14710 (Technical Grade)

Controlled Product

CAS: 5858-39-9

Formula: C₁₇H₁₃N₂NaO₅S

Color and Shape: Neat

Molecular weight: 380.35

Ref: TR-A965450

C.I. Acid Red 4

CAS: 5858-39-9

C.I. Acid Red 4 is a red dye.

Formula: C₁₇H₁₃N₂NaO₅S

Purity: 98%

Color and Shape: Solid

Molecular weight: 381.36

Ref: TM-T20892