GSTO1-IN-1 is a potent glutathione S-transferase omega 1 (GSTO1) inhibitor with an IC50 of 31 nM

Seneciphylline, a natural product isolated and purified from the herbs of Senecio scandens, can significantly increased the activities of epoxide hydrase and glutathione-S-transferase but cause reduction of cytochrome P-450 and related monooxygenase activities.

Ezatiostat is an analog of glutathione that can inhibit glutathione S-transferase P1-1 (GSTP1-1).

trans-Methylisoeugenol, is a natural food flavour isolated and purified from the roots of Atractylodes macrocephala with anxiolytic and antidepressant like properties, which can cause moderate reversible inhibition of glutathione S-transferases (GSTs)(I25 ranged from 0.2 to 5.4 mM for human GSTs and from 0.4 to 4.9 mM for rat GSTs), and inhibits and/or prevents the growth of and/or to destroy micro-organisms causing bad breath and/or to combat bad breath.

GSTO-IN-2 is a glutathione S-transferase inhibitor with IC50s of 3.6, 16.3, and 1.4 μM for GSTA2, GSTM1, and GSTP1-1.

3-(2-Glucosyloxy-4-methoxyphenyl)propanoic acid is a natural product isolated and purified from the barks of Caesalpinia bonduc with glutathione S-transferase (GST) inhibitory and antifungal activities.

Ezatiostat HCl is a glutathione analog inhibitor of glutathione S-transferase P1-1 (GSTP1-1).

Coniferyl ferulate is a natural product.