SBB-Analogue (GL13) Biotin (GL13; SBB-A-B) is composed of a Sudan Black B (SBB;) derivative conjugated to biotin. SBB-Analogue (GL13) Biotin detects robustly senescent cells. SBB-Analogue (GL13) Biotin is deprived of the false positive staining disadvantages of SA-β-gal due to serum starvation and cell confluency. SBB-Analogue (GL13) Biotin can be used in flow cytometry and immunofluorescence analysis, etc.