N-Hydroxypipecolic acid (NHP) is a plant metabolite and a systemic acquired resistance (SAR) regulator.

Heneicosane (henicosane) is a pheromone that inhibits the production of aflatoxins. Heneicosane is an aroma component isolated from Streptomyces philanthi RL-1-178 or Serapias cordigera.

Hexachloroethane, also known by its systematic name perchloroethane, is a chlorinated hydrocarbon and a chlorinated alkane that appears as a white or colorless crystalline solid at room temperature, with a distinctive camphor-like odor. Hexachloroethane has various industrial uses, including in military smoke compositions, metal and alloy production, and as an ingredient in some specialized pesticides and lubricants. Hexachloroethane is also known to be toxic and can cause significant adverse health effects in humans upon exposure.

1,2,3,5-Tetramethylbenzene is a poly-methylated benzene widely used in biochemical experiments and drug synthesis research.

p-Terphenyl is a triphenyl derivative used in industry as a heat transfer medium and dye carrier, and can be used for related research in the life sciences.

Nonacosane is a straight-chain alkane comprising of 29 carbon atoms. It has a role as a plant metabolite and a volatile oil component.

1,2-Dimethylnaphthalene is a specific dimethylnaphthalene isomer carrying methyl substituents at the 1 and 2 positions on the naphthalene ring system, and this polycyclic aromatic hydrocarbon has been reported as a natural constituent in several plant species including Phaseolus vulgaris, Nelumbo lutea, and Magnolia liliiflora.

Anthracene is a polycyclic aromatic hydrocarbon (PAH) consisting of three fused benzene rings that presents as a colorless, solid, crystalline substance derived primarily from coal tar, known for its characteristic blue fluorescence under ultraviolet light and its extensive use as a fundamental raw material for producing anthraquinone dyes, synthetic fibers, and various other organic compounds. While Anthracene serves as a component in some wood preservatives and asphalt products, Anthracene is also a recognized environmental pollutant and is classified as a potential occupational carcinogen by some regulatory bodies.