Acid Red 118

• CAS: 12217-35-5
• Catalog Number: ACM12217355
• Category: Acid Dyes
• Molecular Weight: 540.619
• Molecular Formula: C25H24N4O6S2
• Description: Acid Red 118 is a synthetic dye that falls under the Acid Dye class. Acid Red 118, also known as C.I. Acid Red 118 or Acid Red MTR, is a specific dye within the Acid Dye category.
• Synonyms: C.I. Acid red 118;Acid red 118 (C.I. 26410);Red GW
• IUPAC Name: 6-amino-5-[[3-[ethyl(phenyl)sulfamoyl]-4-methylphenyl]diazenyl]-4-hydroxynaphthalene-2-sulfonic acid
• Canonical SMILES: CCN(C1=CC=CC=C1)S(=O)(=O)C2=C(C=CC(=C2)N=NC3=C(C=CC4=CC(=CC(=C43)O)S(=O)(=O)O)N)C
• InChI: InChI=1S/C25H24N4O6S2/c1-3-29(19-7-5-4-6-8-19)36(31,32)23-14-18(11-9-16(23)2)27-28-25-21(26)12-10-17-13-20(37(33,34)35)15-22(30)24(17)25/h4-15,30H,3,26H2,1-2H3,(H,33,34,35)
• InChI Key: JQNSWTWZESAPPA-UHFFFAOYSA-N
• Density: 1.5±0.1 g/mL
• Appearance: Powder
• Application: Acid dyes are water-soluble anionic dyes commonly used for dyeing protein fibers such as silk, wool, and nylon, as well as other materials like leather and synthetic fibers.
• Storage: Store at 2-8 ℃
• Exact Mass: 540.113708
• PSA: -0.09
• XLogP3: 1.682

Case Study

Patch Test Study of Acid Red 118 as a Contact Allergy

Seidenari S, et al. Contact Dermatitis, 1995, 33(2), 118-122; Nijman L, et al. Contact Dermatitis, 2023, 88(3), 220-229.

Skin exposed to friction, sweating, and close contact with textiles is susceptible to contact allergy and allergic contact dermatitis (ACD) from textile allergens. Acid red 118 may be one of the sources of textile dye allergens. There are very few studies that have evaluated the allergenic potential of the non-dispersed azo dye acid red 118 through patch testing.
· Patch testing was performed on 1814 patients attending a patch testing clinic, and 16 (0.88%) reacted to the newly added dyes: 8 to direct orange, 5 to acid yellow, 2 to acid red, 1 to acid red 118.
· According to a recent patch test of textile dyes, only 3 (1.4%) patients showed a weak positive reaction to the acid red 118 allergen.

Custom Q&A

What is the molecular formula of Acid Red 118?

The molecular formula of Acid Red 118 is C25H24N4O6S2.

What is the molecular weight of Acid Red 118?

The molecular weight of Acid Red 118 is 540.6 g/mol.

What is the IUPAC name of Acid Red 118?

The IUPAC name of Acid Red 118 is 6-amino-5-[[3-[ethyl(phenyl)sulfamoyl]-4-methylphenyl]diazenyl]-4-hydroxynaphthalene-2-sulfonic acid.

What is the InChIKey of Acid Red 118?

The InChIKey of Acid Red 118 is JQNSWTWZESAPPA-UHFFFAOYSA-N.

What is the Canonical SMILES of Acid Red 118?

The Canonical SMILES of Acid Red 118 is CCN(C1=CC=CC=C1)S(=O)(=O)C2=C(C=CC(=C2)N=NC3=C(C=CC4=CC(=CC(=C43)O)S(=O)(=O)O)N)C.

What is the CAS number of Acid Red 118?

The CAS number of Acid Red 118 is 83027-46-7.

What is the XLogP3-AA value of Acid Red 118?

The XLogP3-AA value of Acid Red 118 is 4.1.

How many hydrogen bond donor counts does Acid Red 118 have?

Acid Red 118 has 3 hydrogen bond donor counts.

How many hydrogen bond acceptor counts does Acid Red 118 have?

Acid Red 118 has 10 hydrogen bond acceptor counts.

What is the topological polar surface area of Acid Red 118?

The topological polar surface area of Acid Red 118 is 180Å2.

How many hydrogen bond donor count does Acid Red 118 have?

Acid Red 118 has 3 hydrogen bond donor counts.

How many rotatable bond counts does Acid Red 118 have?

Acid Red 118 has 7 rotatable bond counts.

What is the heavy atom count of Acid Red 118?

The heavy atom count of Acid Red 118 is 37.

In which year was Acid Red 118 created and modified according to PubChem?

Acid Red 118 was created on 2005-08-08 and modified on 2023-12-02 according to PubChem.