Description

Solvent Yellow 157 (CAS No. 27908-75-4) is a high-purity chlorinated quinoline-based dye with the molecular formula C₁₈H₇Cl₄NO₂. This vibrant yellow pigment is chemically identified as 4,5,6,7-tetrachloro-2-quinolin-2-ylindene-1,3-dione, featuring a robust polycyclic structure ideal for solvent-based applications. With exceptional thermal stability and lightfastness, it is widely utilized in industrial coatings, inks, and specialty plastics. Its high solubility in organic solvents ensures uniform dispersion, making it a preferred choice for researchers requiring consistent chromatic performance. Each batch undergoes rigorous QC testing (HPLC, FTIR) to guarantee ≥98% purity, meeting stringent laboratory and industrial standards.

Properties

• CAS Number: 27908-75-4
• Complexity: 541
• IUPAC Name: 4,5,6,7-tetrachloro-2-(2-quinolyl)indane-1,3-dione
• InChI: InChI=1S/C18H7Cl4NO2/c19-13-11-12(14(20)16(22)15(13)21)18(25)10(17(11)24)9-6-5-7-3-1-2-4-8(7)23-9/h1-6,10H
• InChI Key: FTQURCYYMGCGDB-UHFFFAOYSA-N
• Exact Mass: 410.920139
• Molecular Formula: C18H7Cl4NO2
• Molecular Weight: 411.1
• SMILES: C1=CC=C2C(=C1)C=CC(=N2)C3C(=O)C4=C(C3=O)C(=C(C(=C4Cl)Cl)Cl)Cl
• Topological: 47
• Monoisotopic Mass: 408.923089
• Synonyms: 27908-75-4, SOLVENT YELLOW 157, 4,5,6,7-tetrachloro-2-quinolin-2-ylindene-1,3-dione, 4,5,6,7-Tetrachloro-2-(quinolin-2-yl)-1H-indene-1,3(2H)-dione, SCHEMBL12855868, FTQURCYYMGCGDB-UHFFFAOYSA-N, DTXSID901185468, 4,5,6,7-Tetrachloro-2-(2-quinolinyl)-1H-indene-1,3(2H)-dione

Application

Solvent Yellow 157 is primarily employed as a colorant in non-aqueous systems, including automotive paints and polymer dyes, due to its excellent solvent compatibility. Researchers leverage its stability in high-temperature processes for coatings and ink formulations. It also serves as a marker dye in petroleum products and analytical chemistry applications.

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