652145-29-4

D 131 is an orange organic indoline dye. The absorption maxima of D131 in solution is λ=425 nm[1][2].

[1] Kimura M, et al. Dye molecules for simple co-sensitization process: fabrication of mixed-dye-sensitized solar cells. Angew Chem Int Ed Engl. 2012 Apr 27;51(18):4371-4. DOI:10.1002/anie.201108610
[2] Li P, et al. Rigidified and expanded N-annulated perylenes as efficient donors in organic sensitizers for application in solar cells. Phys Chem Chem Phys. 2019 May 28;21(20):10488-10496. DOI:10.1039/c9cp00779b