Mitoquinol, a ubiquinone derivative, specifically accumulates in mitochondria due to the covalent attachment of the cation triphenylphosphonium. Mitoquinol is an antioxidant, protecting mitochondria from oxidative damage and preventing lipid peroxidation-induced apoptosis.

Substance P-related peptide that inhibits binding of G proteins to their receptors. Competitively and reversibly inhibits M2 muscarinic receptor activation of Gi or Go and inhibits Gs activation by β-adrenoceptors.

SHMT-IN-2 是一种特异性人SHMT1/2 抑制剂，对 SHMT1 和 SHMT2 的 IC50 值分别为 13 nM 和 66 nM。SHMT-IN-2 可以抑制许多人类癌细胞的生长，对 B 细胞淋巴瘤有敏感性。