Substance | Relationship Strength | Studies | Trials | Classes | Roles |
hydrogen sulfide Hydrogen Sulfide: A flammable, poisonous gas with a characteristic odor of rotten eggs. It is used in the manufacture of chemicals, in metallurgy, and as an analytical reagent. (From Merck Index, 11th ed). hydrogen sulfide : A sulfur hydride consisting of a single sulfur atom bonded to two hydrogen atoms. A highly poisonous, flammable gas with a characteristic odour of rotten eggs, it is often produced by bacterial decomposition of organic matter in the absence of oxygen.. thiol : An organosulfur compound in which a thiol group, -SH, is attached to a carbon atom of any aliphatic or aromatic moiety. | 2.07 | 1 | 0 | gas molecular entity; hydracid; mononuclear parent hydride; sulfur hydride | Escherichia coli metabolite; genotoxin; metabolite; signalling molecule; toxin; vasodilator agent |
ethidium Ethidium: A trypanocidal agent and possible antiviral agent that is widely used in experimental cell biology and biochemistry. Ethidium has several experimentally useful properties including binding to nucleic acids, noncompetitive inhibition of nicotinic acetylcholine receptors, and fluorescence among others. It is most commonly used as the bromide.. ethidium : The fluorescent compound widely used in experimental cell biology and biochemistry to reveal double-stranded DNA and RNA. | 2.03 | 1 | 0 | phenanthridines | fluorochrome; intercalator |
thiophenes Thiophenes: A monocyclic heteroarene furan in which the oxygen atom is replaced by a sulfur.. thiophenes : Compounds containing at least one thiophene ring. | 3.46 | 7 | 0 | mancude organic heteromonocyclic parent; monocyclic heteroarene; thiophenes; volatile organic compound | non-polar solvent |
singlet oxygen Singlet Oxygen: An excited state of molecular oxygen generated photochemically or chemically. Singlet oxygen reacts with a variety of biological molecules such as NUCLEIC ACIDS; PROTEINS; and LIPIDS; causing oxidative damages. | 2.03 | 1 | 0 | chalcogen; monoatomic oxygen; nonmetal atom | macronutrient |