CAS 3734-67-6

C.I. Acid Red 1

Description:

C.I. Acid Red 1, with the CAS number 3734-67-6, is a synthetic azo dye commonly used in various applications, including textiles, food, and cosmetics. It is characterized by its bright red color and is soluble in water, making it suitable for dyeing processes. The chemical structure of Acid Red 1 features an azo group (-N=N-) that contributes to its vibrant hue and stability. This dye is known for its good lightfastness and moderate resistance to washing, although its performance can vary depending on the substrate. Acid Red 1 is often utilized in the food industry as a color additive, but its use is regulated in many countries due to potential health concerns associated with azo dyes. Toxicological studies have indicated that some azo dyes can release aromatic amines, which may pose risks. Therefore, safety assessments and regulatory compliance are essential when using this dye in consumer products. Overall, C.I. Acid Red 1 is a versatile dye with significant industrial applications, but it requires careful handling and adherence to safety guidelines.

Formula: C₁₈H₁₅N₃O₈S₂·2Na

InChI: InChI=1S/C18H15N3O8S2.2Na/c1-10(22)19-14-9-13(30(24,25)26)7-11-8-15(31(27,28)29)17(18(23)16(11)14)21-20-12-5-3-2-4-6-12;;/h2-9,23H,1H3,(H,19,22)(H,24,25,26)(H,27,28,29);;

InChI key: InChIKey=MQTWRKFVJSGRMM-UHFFFAOYSA-N

SMILES: N(C(C)=O)C=1C2=C(C=C(S(=O)(=O)O)C(N=NC3=CC=CC=C3)=C2O)C=C(S(=O)(=O)O)C1.[Na]

Synonyms:

• Azophloxin
• Azophloxine
• 2,7-Naphthalenedisulfonic acid, 5-(acetylamino)-4-hydroxy-3-(2-phenyldiazenyl)-, sodium salt (1:2)
• Food Red 10
• C.I. Acid Red 1, disodium salt
• disodium (3E)-5-(acetylamino)-4-oxo-3-(2-phenylhydrazinylidene)-3,4-dihydronaphthalene-2,7-disulfonate
• C.I. Acid Red 1
• 2,7-Naphthalenedisulfonic acid, 5-(acetylamino)-4-hydroxy-3-(phenylazo)-, disodium salt
• Disodium 5-acetylamino-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulphonate
• 1-Naphthol-3,6-disulfonic acid, 8-acetamido-2-phenylazo-, disodium salt
• C.I. 18050
• disodium (3Z)-5-(acetylamino)-4-oxo-3-(phenylhydrazono)-3,4-dihydronaphthalene-2,7-disulfonate
• Acid red 1
• C.I. Food Red 10
• C.I. Acid Red 1

Acid Red 1

CAS: 3734-67-6

Formula: C₁₈H₁₃N₃Na₂O₈S₂

Color and Shape: Red to Dark red to Brown powder to crystal

Molecular weight: 509.41

Ref: 3B-A0585

2,7-Naphthalenedisulfonic acid,5-(acetylamino)-4-hydroxy-3-(phenylazo)-, disodium salt

CAS: 3734-67-6

Formula: C₁₈H₁₃N₃Na₂O₈S₂

Purity: 100%

Color and Shape: Solid

Molecular weight: 509.4207

Ref: IN-DA00ILH5

Sodium 5-Acetamido-4-Hydroxy-3-(Phenyldiazenyl)Naphthalene-2,7-Disulfonate

CAS: 3734-67-6

Sodium 5-Acetamido-4-Hydroxy-3-(Phenyldiazenyl)Naphthalene-2,7-Disulfonate

Purity: 98%

Molecular weight: 509.42g/mol

Ref: 54-OR1015000

Acid Red 2G (E128) 100 µg/mL in Water

CAS: 3734-67-6

Formula: C₁₈H₁₃N₃O₈S₂Na

Color and Shape: Colourless

Molecular weight: 509.42

Ref: 04-A10028700WA-100

Acid Red 2G (E128)

Controlled Product

CAS: 3734-67-6

Formula: C₁₈H₁₃N₃O₈S₂Na

Color and Shape: Red

Molecular weight: 509.42

Ref: 04-C10028700

Azophloxine

CAS: 3734-67-6

Azophloxine, also known as acid red 1 (AR1), is a member of synthetic red azo dye family.

Formula: C₁₈H₁₅N₃NaO₈S₂

Color and Shape: Solid

Molecular weight: 488.44

Ref: TM-T40471

Acid Red 1 (C.I. 18050)

CAS: 3734-67-6

Formula: C₁₈H₁₃N₃Na₂O₈S₂

Purity: ≥ 80%

Color and Shape: Red to brown-violet or purple powder

Molecular weight: 509.42

Ref: 7W-GT6503

Acid Red 1 (Technical Grade)

CAS: 3734-67-6

Stability Light Sensitive
Applications Acid Red 1, tech. is a synthetic red azo dye used as food additive. Studies have shown that Red Acid 1 is converted to toxic compound aniline and may ultimately interfere with blood haemoglobin. Dyes and metabolites, Environmental Testing.
References Ordoudi, S.A., et al.: Food. Add. Contamin., 28, 417 (2011); Ganesan, L., et al.: Biochem. Pharmacol., 81, 810 (2011);

Formula: C₁₈H₁₃N₃O₈S₂·2Na

Color and Shape: Red

Molecular weight: 509.42

Ref: TR-A189830

Acid red 1

CAS: 3734-67-6

Acid Red 1 is an optical sensor that produces a change in color when it reacts with a substance. It also has fixative properties and is used to preserve biological samples. Acid Red 1 is typically made up of two components: one that absorbs light at 660 nm and another that absorbs light at 780 nm. The rate constant for the reaction between Acid Red 1 and the substance is proportional to the concentration of the substance. Acid Red 1 has been shown to have synergistic effects when combined with other dyes, such as Sudan III. This dye can be used on biological samples such as blood, skin, or hair for genotoxic activity testing or for analytical methods such as electrochemical impedance spectroscopy.

Formula: C₁₈H₁₃N₃Na₂O₈S₂

Purity: Min. 95%

Molecular weight: 509.42 g/mol

Ref: 3D-FA171874