(−)-GC

(-)-Gallocatechin ((−)-GC) has free radical scavenging ability and moderate affinity to the human cannabinoid receptor.

Betaine chloride (Betaine hydrochloride) is an acidic form of betaine, a vitamin-like substance observed in grains and other foods; gains the amplification of DNA by decreasing the formation of secondary structure in GC-rich regions.

Docosane [Standard Material for GC] is a natural product.

Chromomycin A3 is an antibiotic produced by Streptomyces sp that binds to gc-rich DNA sequences in the presence of divalent cations and inhibits DNA replication and transcription; it is also used as a fluorescent DNA stain and assay; and it has anticancer activity against diseases such as Hodgkin's, lung adenocarcinomas, melanomas, and breast cancer.

1-Pentadecene [Standard Material for GC] is a natural product.

Waldiomycin is an antibiotic found in Streptomyces sp. MK844-mF10 that inhibits Gram-positive bacteria with low GC content. It functions by targeting the ATP-binding domain of the WalK kinase, thereby inhibiting its activity and disrupting the WalK WalR signaling pathway, which is crucial for cell growth and division.