Substance | Relationship Strength | Studies | Trials | Classes | Roles |
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 |
indole [no description available] | 7.41 | 1 | 0 | indole; polycyclic heteroarene | Escherichia coli metabolite |
catechin Catechin: An antioxidant flavonoid, occurring especially in woody plants as both (+)-catechin and (-)-epicatechin (cis) forms.. catechin : Members of the class of hydroxyflavan that have a flavan-3-ol skeleton and its substituted derivatives.. rac-catechin : A racemate comprising equimolar amounts of (+)- and (-)-catechin. (+)-catechin : The (+)-enantiomer of catechin and a polyphenolic antioxidant plant metabolite. | 2.15 | 1 | 0 | catechin | antioxidant; plant metabolite |
coumaran 2,3-dihydrobenzofuran : A member of the class of 1-benzofurans that is the 2,3-dihydroderivative of benzofuran. | 3.31 | 1 | 0 | 1-benzofurans | metabolite |
palladium Palladium: A chemical element having an atomic weight of 106.4, atomic number of 46, and the symbol Pd. It is a white, ductile metal resembling platinum, and following it in abundance and importance of applications. It is used in dentistry in the form of gold, silver, and copper alloys.. palladium : Chemical element (nickel group element atom) with atomic number 46. | 7.1 | 1 | 0 | metal allergen; nickel group element atom; platinum group metal atom | |
glucose, (beta-d)-isomer beta-D-glucose : D-Glucopyranose with beta configuration at the anomeric centre.. (1->4)-beta-D-glucan : A beta-D-glucan in which the glucose units are connected by (1->4) linkages.. (1->3)-beta-D-glucan : A beta-D-glucan in which the glucose units are connected by (1->3) linkages. | 2.04 | 1 | 0 | D-glucopyranose | epitope; mouse metabolite |
procyanidin Proanthocyanidins: Dimers and oligomers of flavan-3-ol units (CATECHIN analogs) linked mainly through C4 to C8 bonds to leucoanthocyanidins. They are structurally similar to ANTHOCYANINS but are the result of a different fork in biosynthetic pathways. | 7.15 | 1 | 0 | proanthocyanidin | |
benzofurans Benzofurans: Compounds that contain a BENZENE ring fused to a furan ring. | 8.88 | 3 | 0 | | |
strychnine Strychnine: An alkaloid found in the seeds of STRYCHNOS NUX-VOMICA. It is a competitive antagonist at glycine receptors and thus a convulsant. It has been used as an analeptic, in the treatment of nonketotic hyperglycinemia and sleep apnea, and as a rat poison.. strychnine : A monoterpenoid indole alkaloid that is strychnidine bearing a keto substituent at the 10-position. | 3.51 | 1 | 0 | monoterpenoid indole alkaloid; organic heteroheptacyclic compound | avicide; cholinergic antagonist; glycine receptor antagonist; neurotransmitter agent; rodenticide |
brucine brucine: was heading 1991-94 (see under STRYCHNINE 1975-90); DIMETHOXYSTRYCHNINE was see BRUCINE 1975-94; use STRYCHNINE to search BRUCINE 1975-94; very toxic alkaloid from Nux vomica similar to strychnine; used as reagent in analytical chemistry; was MH 1991-94 | 3.51 | 1 | 0 | monoterpenoid indole alkaloid; organic heteroheptacyclic compound | |
epinephrine ircinal A: from an Indonesian Acanthostrongylophora sponge with activity against infectious, tropical parasitic, and Alzheimer's diseases; structure in first source | 3.51 | 1 | 0 | | |
quercetin [no description available] | 3.51 | 1 | 0 | 7-hydroxyflavonol; pentahydroxyflavone | antibacterial agent; antineoplastic agent; antioxidant; Aurora kinase inhibitor; chelator; EC 1.10.99.2 [ribosyldihydronicotinamide dehydrogenase (quinone)] inhibitor; geroprotector; phytoestrogen; plant metabolite; protein kinase inhibitor; radical scavenger |
agathisflavone agathisflavone: bis-apigenin coupled at 6 and 8 positions; isolated from the plant Canarium manii; has hepatoprotective activity against carbon tetrachloride-induced hepatotoxicity. agathisflavone : A biflavonoid that is obtained by oxidative coupling of two molecules of apigenin resulting in a bond between positions C-6 and C-8 of the two chromene rings. | 2.15 | 1 | 0 | biaryl; biflavonoid; hydroxyflavone | antineoplastic agent; antiviral agent; hepatoprotective agent; metabolite |
manzamine a manzamine A: RN given refers to (1R-(1R*,9Z,13S*,13aR*,20aR*,21aR*)-isomer; RN for cpd without isomeric designation not avail 12/92. manzamine A : An alkaloid of the class of beta-carbolines isolated from Haliclona and Acanthostrongylophora. It exhibits inhibitory activity against Glycogen Synthase Kinase-3 (EC 2.7.11.26). | 3.51 | 1 | 0 | alkaloid; beta-carbolines; isoquinolines | animal metabolite; anti-HSV-1 agent; antimalarial; antineoplastic agent; EC 2.7.11.26 (tau-protein kinase) inhibitor; marine metabolite |
conocarpan conocarpan: RN given for (2R-(2alpha,3beta,5(E))-isomer; from the roots of Krameria tomentosa (Krameriaceae); structure in first source | 3.31 | 1 | 0 | | |
procyanidin b1 procyanidin B1 : A proanthocyanidin consisting of (-)-epicatechin and (+)-catechin units joined by a bond between positions 4 and 8' respectively in a beta-configuration.. Procyanidin B1 can be found in Cinnamomum verum (Ceylon cinnamon, in the rind, bark or cortex), in Uncaria guianensis (cat's claw, in the root), and in Vitis vinifera (common grape vine, in the leaf) or in peach. | 2.15 | 1 | 0 | biflavonoid; hydroxyflavan; polyphenol; proanthocyanidin | anti-inflammatory agent; EC 3.4.21.5 (thrombin) inhibitor; metabolite |
linderol a linderol A: a hexahydrodibenzofuran isolated from Lindera umbellata bark, with potent inhibitory activity on melanin biosynthesis of cultured B-16 melanoma cell; structure in first source | 3.31 | 1 | 0 | chalcones | |
lithospermic acid lithospermic acid: isolated from Lithospermum ruderale | 3.31 | 1 | 0 | | |
rifampin Rifampin: A semisynthetic antibiotic produced from Streptomyces mediterranei. It has a broad antibacterial spectrum, including activity against several forms of Mycobacterium. In susceptible organisms it inhibits DNA-dependent RNA polymerase activity by forming a stable complex with the enzyme. It thus suppresses the initiation of RNA synthesis. Rifampin is bactericidal, and acts on both intracellular and extracellular organisms. (From Gilman et al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 9th ed, p1160) | 3.51 | 1 | 0 | cyclic ketal; hydrazone; N-iminopiperazine; N-methylpiperazine; rifamycins; semisynthetic derivative; zwitterion | angiogenesis inhibitor; antiamoebic agent; antineoplastic agent; antitubercular agent; DNA synthesis inhibitor; EC 2.7.7.6 (RNA polymerase) inhibitor; Escherichia coli metabolite; geroprotector; leprostatic drug; neuroprotective agent; pregnane X receptor agonist; protein synthesis inhibitor |
allopurinol Allopurinol: A XANTHINE OXIDASE inhibitor that decreases URIC ACID production. It also acts as an antimetabolite on some simpler organisms.. allopurinol : A bicyclic structure comprising a pyrazole ring fused to a hydroxy-substituted pyrimidine ring. | 3.51 | 1 | 0 | nucleobase analogue; organic heterobicyclic compound | antimetabolite; EC 1.17.3.2 (xanthine oxidase) inhibitor; gout suppressant; radical scavenger |