Asphalt is a dark liquid. It is also a mixture of heavy hydrocarbon residues including saturated and unsaturated hydrocarbons and aromatic hydrocarbons.
Alyssin is a sulforaphane homolog and antioxidant. It induces phase II enzymes and increases Nrf2 levels in adenocarcinoma cells. It decreases the metabolism of polycyclic aromatic hydrocarbons, supressing the risk of carcinogenesis in vitro.
Hydrogenated didecene as skin-softening agent derived from didecene, which is a hydrocarbon. Hydrocarbons are organic compounds that contain only carbon and hydrogen. Examples of common hydrocarbons include mineral oil, petroleum, and paraffin wax.
Unsaturated cuticular hydrocarbons serve as pheromones in insects. In D. melanogaster, these hydrocarbons are sexually dimorphic in both their occurrence and their effects. 7(Z),11(Z)-Nonacosadiene is a cuticular pheromone in female fruit flies that stimulates male courtship behavior. The biosynthesis of this C29 diene appears to be mediated by an elongase with female-based expression.
Unsaturated, long-chain hydrocarbons are found on the cuticles of insects and can act as pheromones. In mature Drosophila melanogaster, certain cuticular hydrocarbons are sexually dimorphic: males synthesize 23- and 25-C monoenes and females produce 27- and 29-C dienes. Each of these lipids plays specific roles in regulating male sexual behavior, with dienes stimulating courtship. 7(Z),11(Z)-Pentacosadiene is a 25-C hydrocarbon that is found in low abundance on cuticles of mature Drosophila females. Depletion of a female-specific elongase (eloF), which leads to an increase in 7(Z),11(Z)-pentacosadiene along with a parallel decrease in 7,11-nonacosadiene, significantly reduces copulation in Drosophila. This raises the possibility that 7(Z),11(Z)-pentacosadiene may act as an anti-aphrodisiac.
16:0-12 Doxyl PC (1-Palmitoyl-2-stearoyl-(12-doxyl)-sn-glycero-3-phosphocholine) 是一种用于荧光猝灭的化合物,其结构中特征性的氮氧化物位于 sn-2 链的下游。16:0-12 Doxyl PC 对深埋于双层烃区域的荧光团具有出色的猝灭效率。