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. 2025 May 30;19(1):155. doi: 10.1186/s13065-025-01517-y

Table 1.

Physical and chemical properties of RY145 dye

C.I. generic name Reactive yellow RY 145 dye
Chemical class Azo dye – vinyl sulfone type
Chemical structure graphic file with name 13065_2025_1517_Figb_HTML.gif
CAS registry number 93,050–80-7
Molecular formula C28H20ClN9Na4O16S5
Molecular weight 1026.25
Physical state Powder
λmax 417 nm
Solubility in water at 30 °C 80 g L−1