Disperse Red 1

• CAT Number: R043562
• CAS Number: 2872-52-8
• Molecular Formula: C16H18N4O3
• Molecular Weight: 314.34
• Purity: ≥95%
• Synonyms: 2-[N-ethyl-4-[(4-nitrophenyl)diazenyl]anilino]ethanol
• InChI: InChI=1S/C16H18N4O3/c1-2-19(11-12-21)15-7-3-13(4-8-15)17-18-14-5-9-16(10-6-14)20(22)23/h3-10,21H,2,11-12H2,1H3
• InChIKey: FOQABOMYTOFLPZ-UHFFFAOYSA-N
• SMILES: CCN(CCO)C1=CC=C(C=C1)N=NC2=CC=C(C=C2)[N+](=O)[O-]

Disperse Red 1 (Cat No.:R043562) is an azo dye widely used as a chromophore in nonlinear optical (NLO) materials, photonic devices, and dye-sensitized systems. It contains a donor–acceptor structure, enabling efficient charge transfer and strong light absorption in the visible region. DR1 is often incorporated into polymers, films, and nanostructures to enhance electro-optic properties and photoresponsivity. Beyond its industrial use in textiles, it has become a model compound for studying molecular orientation, photoisomerization, and stability in optoelectronic research, highlighting its value in material chemistry applications.