Substance | Relationship Strength | Studies | Trials | Classes | Roles |
methane Methane: The simplest saturated hydrocarbon. It is a colorless, flammable gas, slightly soluble in water. It is one of the chief constituents of natural gas and is formed in the decomposition of organic matter. (Grant & Hackh's Chemical Dictionary, 5th ed). methane : A one-carbon compound in which the carbon is attached by single bonds to four hydrogen atoms. It is a colourless, odourless, non-toxic but flammable gas (b.p. -161degreeC). | 2.75 | 3 | 0 | alkane; gas molecular entity; mononuclear parent hydride; one-carbon compound | bacterial metabolite; fossil fuel; greenhouse gas |
hydrogen Hydrogen: The first chemical element in the periodic table with atomic symbol H, and atomic number 1. Protium (atomic weight 1) is by far the most common hydrogen isotope. Hydrogen also exists as the stable isotope DEUTERIUM (atomic weight 2) and the radioactive isotope TRITIUM (atomic weight 3). Hydrogen forms into a diatomic molecule at room temperature and appears as a highly flammable colorless and odorless gas.. dihydrogen : An elemental molecule consisting of two hydrogens joined by a single bond. | 2.1 | 1 | 0 | elemental hydrogen; elemental molecule; gas molecular entity | antioxidant; electron donor; food packaging gas; fuel; human metabolite |
naphthalene [no description available] | 2.05 | 1 | 0 | naphthalenes; ortho-fused bicyclic arene | apoptosis inhibitor; carcinogenic agent; environmental contaminant; mouse metabolite; plant metabolite; volatile oil component |
nickel Nickel: A trace element with the atomic symbol Ni, atomic number 28, and atomic weight 58.69. It is a cofactor of the enzyme UREASE.. nickel ion : A nickel atom having a net electric charge.. nickel atom : Chemical element (nickel group element atom) with atomic number 28. | 2.48 | 2 | 0 | metal allergen; nickel group element atom | epitope; micronutrient |
nitroxyl nitroxyl: hydroxamic acid oxidized to nitroxyl free radical. nitroxyl : A nitrogen oxoacid consisting of an oxygen atom double-bonded to an NH group. | 2.13 | 1 | 0 | nitrogen oxoacid | |
sulfuric acid sulfuric acid : A sulfur oxoacid that consists of two oxo and two hydroxy groups joined covalently to a central sulfur atom. | 2.05 | 1 | 0 | sulfur oxoacid | catalyst |
quinone benzoquinone : The simplest members of the class of benzoquinones, consisting of cyclohexadiene which is substituted by two oxo groups.. 1,4-benzoquinone : The simplest member of the class of 1,4-benzoquinones, obtained by the formal oxidation of hydroquinone to the corresponding diketone. It is a metabolite of benzene.. quinone : Compounds having a fully conjugated cyclic dione structure, such as that of benzoquinones, derived from aromatic compounds by conversion of an even number of -CH= groups into -C(=O)- groups with any necessary rearrangement of double bonds (polycyclic and heterocyclic analogues are included). | 7.08 | 1 | 0 | 1,4-benzoquinones | cofactor; human xenobiotic metabolite; mouse metabolite |
bromodeoxyuridine Bromodeoxyuridine: A nucleoside that substitutes for thymidine in DNA and thus acts as an antimetabolite. It causes breaks in chromosomes and has been proposed as an antiviral and antineoplastic agent. It has been given orphan drug status for use in the treatment of primary brain tumors. | 2.04 | 1 | 0 | pyrimidine 2'-deoxyribonucleoside | antimetabolite; antineoplastic agent |
decalin decalin: RN given refers to cpd without isomeric designation; don't confuse with decaline which has a nitrogen at the juncture of the two rings;. trans-decalin : The trans-stereoisomer of decalin.. decalin : An ortho-fused bicyclic hydrocarbon that is the decahydro- derivative of naphthalene. | 2.05 | 1 | 0 | ortho-fused bicyclic hydrocarbon | solvent |
quinoxalines quinoxaline : A naphthyridine in which the nitrogens are at positions 1 and 4. | 2.13 | 1 | 0 | mancude organic heterobicyclic parent; naphthyridine; ortho-fused heteroarene | |
naphthacene tetracene : An acene that consists of four ortho-fused benzene rings in a rectilinear arrangement. | 2.77 | 3 | 0 | acene; tetracenes | |
2-dichlorobenzene 2-dichlorobenzene: structure. 1,2-dichlorobenzene : A dichlorobenzene carrying chloro substituents at positions 1 and 2. | 2.08 | 1 | 0 | dichlorobenzene | hepatotoxic agent; metabolite |
anthracene acene : A polycyclic aromatic hydrocarbon consisting of fused benzene rings in a rectilinear arrangement.. acenes : Polycyclic aromatic hydrocarbons consisting of fused benzene rings in a rectilinear arrangement and their substitution derivatives. | 2.76 | 3 | 0 | acene; anthracenes; ortho-fused tricyclic hydrocarbon | |
2-naphthol 2-naphthol: RN given refers to parent cpd. 2-naphthol : A naphthol carrying a hydroxy group at position 2.. naphthols : Any hydroxynaphthalene derivative that has a single hydroxy substituent. | 2.04 | 1 | 0 | naphthol | antinematodal drug; genotoxin; human urinary metabolite; human xenobiotic metabolite; mouse metabolite; radical scavenger |
perylene Perylene: A 20-carbon dibenz(de,kl)anthracene that can be viewed as a naphthalene fused to a phenalene or as dinaphthalene. It is used as fluorescent lipid probe in the cytochemistry of membranes and is a polycyclic hydrocarbon pollutant in soil and water. Derivatives may be carcinogenic.. perylene : An ortho- and peri-fused polycyclic arene comprising of five benzene rings that is anthracene in which the d,e and k,l sides are fused to benzene rings. | 8.17 | 5 | 0 | ortho- and peri-fused polycyclic arene; perylenes | |
pyrazines Pyrazines: A heterocyclic aromatic organic compound with the chemical formula C4H4N2.. pyrazine : A diazine that is benzene in which the carbon atoms at positions 1 and 4 have been replaced by nitrogen atoms. | 2.49 | 2 | 0 | diazine; pyrazines | Daphnia magna metabolite |
(s)-binol (1,1'-binaphthalene)-2,2'-diol: structure in first source | 2.04 | 1 | 0 | naphthols | |
perfluoropentane perfluoropentane: inert expander of tissue spaces, liquid at room temperature, but gaseous at body temperatures; used in experimental eye surgery; structure. perfluoropentane : A fluorocarbon that is pentane in which all of the hydrogens have been replaced by fluorines. | 2.05 | 1 | 0 | fluoroalkane; fluorocarbon | radioopaque medium; ultrasound contrast agent |
hexamethylsilazane hexamethylsilazane: RN given refers to parent cpd | 2.07 | 1 | 0 | N-silyl compound | chromatographic reagent |
zinc oxide Zinc Oxide: A mild astringent and topical protectant with some antiseptic action. It is also used in bandages, pastes, ointments, dental cements, and as a sunblock. | 2.46 | 2 | 0 | zinc molecular entity | |
octyltrichlorosilane [no description available] | 2.06 | 1 | 0 | | |
silver Silver: An element with the atomic symbol Ag, atomic number 47, and atomic weight 107.87. It is a soft metal that is used medically in surgical instruments, dental prostheses, and alloys. Long-continued use of silver salts can lead to a form of poisoning known as ARGYRIA. | 2.75 | 3 | 0 | copper group element atom; elemental silver | Escherichia coli metabolite |
titanium Titanium: A dark-gray, metallic element of widespread distribution but occurring in small amounts with atomic number, 22, atomic weight, 47.867 and symbol, Ti; specific gravity, 4.5; used for fixation of fractures. | 2.51 | 2 | 0 | titanium group element atom | |
gold Gold: A yellow metallic element with the atomic symbol Au, atomic number 79, and atomic weight 197. It is used in jewelry, goldplating of other metals, as currency, and in dental restoration. Many of its clinical applications, such as ANTIRHEUMATIC AGENTS, are in the form of its salts. | 7.98 | 4 | 0 | copper group element atom; elemental gold | |
titanium dioxide titanium dioxide: used medically as protectant against externally caused irritation & sunlight; high concentrations of dust may cause irritation to respiratory tract; RN given refers to titanium oxide (TiO2); structure. titanium dioxide : A titanium oxide with the formula TiO2. A naturally occurring oxide sourced from ilmenite, rutile and anatase, it has a wide range of applications. | 2.08 | 1 | 0 | titanium oxides | food colouring |
3,4,9,10-perylenetetracarboxylic dianhydride [no description available] | 7.46 | 2 | 0 | | |
rubrene [no description available] | 7.03 | 1 | 0 | | |
tetracyanoquinodimethane tetracyanoquinodimethane: structure. tetracyanoquinodimethane : A quinodimethane that is p-quinodimethane in which the methylidene hydrogens are replaced by cyano groups. | 2.07 | 1 | 0 | alicyclic compound; nitrile; quinodimethane | |
benzyne benzyne: structure in first source. benzyne : 1,2-didehydrobenzene and its derivatives formed by substitution. | 2.1 | 1 | 0 | aryne; benzyne | |
fullerene c60 Fullerenes: A polyhedral CARBON structure composed of around 60-80 carbon atoms in pentagon and hexagon configuration. They are named after Buckminster Fuller because of structural resemblance to geodesic domes. Fullerenes can be made in high temperature such as arc discharge in an inert atmosphere.. fullerene : A compound composed solely of an even number of carbon atoms, which form a cage-like fused-ring polycyclic system with twelve five-membered rings and the rest six-membered rings. The term has been broadened to include any closed cage structure consisting entirely of three-coordinate carbon atoms. | 3.44 | 7 | 0 | fullerene | geroprotector |
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. | 2.07 | 1 | 0 | chalcogen; monoatomic oxygen; nonmetal atom | macronutrient |
organophosphonates hydrogenphosphite : A divalent inorganic anion resulting from the removal of a proton from two of the hydroxy groups of phosphorous acid. | 2.05 | 1 | 0 | divalent inorganic anion; phosphite ion | |
1,2-di-(4-sulfamidophenyl)-4-butylpyrazolidine-3,5-dione 1,2-di-(4-sulfamidophenyl)-4-butylpyrazolidine-3,5-dione: hypoglycemic agent; structure | 2.08 | 1 | 0 | | |
benzofurans Benzofurans: Compounds that contain a BENZENE ring fused to a furan ring. | 2.51 | 2 | 0 | | |
tempo TEMPO: structure. TEMPO : A member of the class of aminoxyls that is piperidine that carries an oxidanediyl group at position 1 and methyl groups at positions 2, 2, 6, and 6, respectively. | 7.11 | 1 | 0 | aminoxyls; piperidines | catalyst; ferroptosis inhibitor; radical scavenger |
aluminum Aluminum: A metallic element that has the atomic number 13, atomic symbol Al, and atomic weight 26.98. | 2.07 | 1 | 0 | boron group element atom; elemental aluminium; metal atom | |
bismuth Bismuth: A metallic element that has the atomic symbol Bi, and atomic number 83. Its principal isotope is Bismuth 209. | 2.05 | 1 | 0 | metal atom; pnictogen | |
silicon Silicon: A trace element that constitutes about 27.6% of the earth's crust in the form of SILICON DIOXIDE. It does not occur free in nature. Silicon has the atomic symbol Si, atomic number 14, and atomic weight [28.084; 28.086]. | 2.98 | 4 | 0 | carbon group element atom; metalloid atom; nonmetal atom | |
aluminum oxide Aluminum Oxide: An oxide of aluminum, occurring in nature as various minerals such as bauxite, corundum, etc. It is used as an adsorbent, desiccating agent, and catalyst, and in the manufacture of dental cements and refractories. | 2.06 | 1 | 0 | | |
perovskite calcium titanate : A calcium salt with the formula CaTiO3, generally obtained in the form of the mineral perovskite. | 7.13 | 1 | 0 | | |
phthalocyanine phthalocyanine : A tetrapyrrole fundamental parent that consists of four isoindole-type units, with the connecting carbon atoms in the macrocycle replaced by nitrogen. | 2.05 | 1 | 0 | phthalocyanines; tetrapyrrole fundamental parent | |