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. 2016 Jan 29;7(5):3234–3239. doi: 10.1039/c6sc00005c

Fig. 4. (A) Allyl sulfones offer dual labeling of proteins. (B) Illustration of the step-wise coupling of two thiol containing molecules by simply adjusting the pH; depiction of the model reaction. (C) Allyl sulfone 1e allows step-wise conjugation of SH-biotin and SH-GFP by increasing the pH from 6 to 8.

Fig. 4