Pyridostatin Trihydrochloride (RR-82 Trihydrochloride) is a G-quadruplexe stabilizer, with a Kd of 490 nM.

Pyridostatin (RR82) is a synthetic small-molecule stabilizer of G-quadruplexes, a secondary structure of DNA that usually exists in the end of the chromosome or the telomeres.

Pyridostatin (RR82) hydrochloride, a G-quadruplex DNA stabilizing agent (Kd = 490 nM), induces replication- and transcription-dependent DNA damage, promoting growth arrest in human cancer cells. It specifically targets the proto-oncogene Src, leading to reduced SRC protein levels and decreased SRC-dependent cellular motility in human breast cancer cells.

Pyridostatin Trifluoroacetate Salt is a G-quadruplexe stabilizer with Kd of 490 nM in a cell-free assay, which targets a series of proto-oncogenes including c-kit, K-ras and Bcl-2.