Figure 2
From: The Abiotic Chemistry of Thiolated Acetate Derivatives and the Origin of Life

1H NMR spectra showing the time evolution of hydrolysis of TAA at 50 °C and pH 2.5 (top) and MTA at 30 °C and pH 10 (bottom).
Peaks were identified by comparison with commercial standards: 1 TAA, 2 acetic acid, 3 MTA, 4 CH3SH. Integrated peak areas were used to determine kinetic parameters.