| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
nitrates
Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical. | 2.05 | 1 | 0 | monovalent inorganic anion;
nitrogen oxoanion;
reactive nitrogen species | |
memantine
[no description available] | 2.08 | 1 | 0 | adamantanes;
primary aliphatic amine | antidepressant;
antiparkinson drug;
dopaminergic agent;
neuroprotective agent;
NMDA receptor antagonist |
riluzole
Riluzole: A glutamate antagonist (RECEPTORS, GLUTAMATE) used as an anticonvulsant (ANTICONVULSANTS) and to prolong the survival of patients with AMYOTROPHIC LATERAL SCLEROSIS. | 2.07 | 1 | 0 | benzothiazoles | |
tetracaine
Tetracaine: A potent local anesthetic of the ester type used for surface and spinal anesthesia.. tetracaine : A benzoate ester in which 4-N-butylbenzoic acid and 2-(dimethylamino)ethanol have combined to form the ester bond; a local ester anaesthetic (ester caine) used for surface and spinal anaesthesia. | 2.08 | 1 | 0 | benzoate ester;
tertiary amino compound | local anaesthetic |
thyroxine
Thyroxine: The major hormone derived from the thyroid gland. Thyroxine is synthesized via the iodination of tyrosines (MONOIODOTYROSINE) and the coupling of iodotyrosines (DIIODOTYROSINE) in the THYROGLOBULIN. Thyroxine is released from thyroglobulin by proteolysis and secreted into the blood. Thyroxine is peripherally deiodinated to form TRIIODOTHYRONINE which exerts a broad spectrum of stimulatory effects on cell metabolism.. thyroxine : An iodothyronine compound having iodo substituents at the 3-, 3'-, 5- and 5'-positions. | 2.07 | 1 | 0 | 2-halophenol;
iodophenol;
L-phenylalanine derivative;
non-proteinogenic L-alpha-amino acid;
thyroxine zwitterion;
thyroxine | antithyroid drug;
human metabolite;
mouse metabolite;
thyroid hormone |
spironolactone
Spironolactone: A potassium sparing diuretic that acts by antagonism of aldosterone in the distal renal tubules. It is used mainly in the treatment of refractory edema in patients with congestive heart failure, nephrotic syndrome, or hepatic cirrhosis. Its effects on the endocrine system are utilized in the treatments of hirsutism and acne but they can lead to adverse effects. (From Martindale, The Extra Pharmacopoeia, 30th ed, p827). spironolactone : A steroid lactone that is 17alpha-pregn-4-ene-21,17-carbolactone substituted by an oxo group at position 3 and an alpha-acetylsulfanyl group at position 7. | 6.98 | 1 | 0 | 3-oxo-Delta(4) steroid;
oxaspiro compound;
steroid lactone;
thioester | aldosterone antagonist;
antihypertensive agent;
diuretic;
environmental contaminant;
xenobiotic |
triiodothyronine
Triiodothyronine: A T3 thyroid hormone normally synthesized and secreted by the thyroid gland in much smaller quantities than thyroxine (T4). Most T3 is derived from peripheral monodeiodination of T4 at the 5' position of the outer ring of the iodothyronine nucleus. The hormone finally delivered and used by the tissues is mainly T3.. 3,3',5-triiodo-L-thyronine : An iodothyronine compound having iodo substituents at the 3-, 3'- and 5-positions. Although some is produced in the thyroid, most of the 3,3',5-triiodo-L-thyronine in the body is generated by mono-deiodination of L-thyroxine in the peripheral tissues. Its metabolic activity is about 3 to 5 times that of L-thyroxine. The sodium salt is used in the treatment of hypothyroidism. | 2.07 | 1 | 0 | 2-halophenol;
amino acid zwitterion;
iodophenol;
iodothyronine | human metabolite;
mouse metabolite;
thyroid hormone |
4-nitroquinoline-1-oxide
4-nitroquinoline N-oxide : A quinoline N-oxide carrying a nitro substituent at position 4. | 1.98 | 1 | 0 | C-nitro compound;
quinoline N-oxide | carcinogenic agent |
glutamine
Glutamine: A non-essential amino acid present abundantly throughout the body and is involved in many metabolic processes. It is synthesized from GLUTAMIC ACID and AMMONIA. It is the principal carrier of NITROGEN in the body and is an important energy source for many cells.. L-glutamine : An optically active form of glutamine having L-configuration.. glutamine : An alpha-amino acid that consists of butyric acid bearing an amino substituent at position 2 and a carbamoyl substituent at position 4. | 2.07 | 1 | 0 | amino acid zwitterion;
glutamine family amino acid;
glutamine;
L-alpha-amino acid;
polar amino acid zwitterion;
proteinogenic amino acid | EC 1.14.13.39 (nitric oxide synthase) inhibitor;
Escherichia coli metabolite;
human metabolite;
metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
Saccharomyces cerevisiae metabolite |
zoxazolamine
Zoxazolamine: A uricosuric and muscle relaxant. Zoxazolamine acts centrally as a muscle relaxant, but the mechanism of its action is not understood. | 1.98 | 1 | 0 | benzoxazole | |
phencyclidine
Phencyclidine: A hallucinogen formerly used as a veterinary anesthetic, and briefly as a general anesthetic for humans. Phencyclidine is similar to KETAMINE in structure and in many of its effects. Like ketamine, it can produce a dissociative state. It exerts its pharmacological action through inhibition of NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE). As a drug of abuse, it is known as PCP and Angel Dust.. phencyclidine : A member of the class of piperidines that is piperidine in which the nitrogen is substituted with a 1-phenylcyclohexyl group. Formerly used as an anaesthetic agent, it exhibits both hallucinogenic and neurotoxic effects. | 2.08 | 1 | 0 | benzenes;
piperidines | anaesthetic;
neurotoxin;
NMDA receptor antagonist;
psychotropic drug |
tetraethyl lead
Tetraethyl Lead: A highly toxic compound used as a gasoline additive. It causes acute toxic psychosis or chronic poisoning if inhaled or absorbed through the skin.. tetraethyllead : An organolead compound consisting of four ethyl groups joined to a central lead atom. | 2.03 | 1 | 0 | organolead compound | |
n-methylpyrrole
[no description available] | 2.05 | 1 | 0 | pyrroles | |
phenylmercuric chloride
[no description available] | 1.98 | 1 | 0 | | |
ethylmercuric chloride
Ethylmercuric Chloride: A highly toxic compound used as a fungicide for treating seeds.. ethylmercuric chloride : A highly toxic organomercury compound which is used as a fungicide for treating seeds. | 1.98 | 1 | 0 | chlorine molecular entity;
organomercury compound | fungicide |
pyrroles
1H-pyrrole : A tautomer of pyrrole that has the double bonds at positions 2 and 4.. pyrrole : A five-membered monocyclic heteroarene comprising one NH and four CH units which forms the parent compound of the pyrrole group of compounds. Its five-membered ring structure has three tautomers. A 'closed class'.. azole : Any monocyclic heteroarene consisting of a five-membered ring containing nitrogen. Azoles can also contain one or more other non-carbon atoms, such as nitrogen, sulfur or oxygen. | 2.05 | 1 | 0 | pyrrole;
secondary amine | |
malondialdehyde
Malondialdehyde: The dialdehyde of malonic acid.. malonaldehyde : A dialdehyde that is propane substituted by two oxo groups at the terminal carbon atoms respectively. A biomarker of oxidative damage to lipids caused by smoking, it exists in vivo mainly in the enol form. | 2.48 | 2 | 0 | dialdehyde | biomarker |
acetylcysteine
N-acetyl-L-cysteine : An N-acetyl-L-amino acid that is the N-acetylated derivative of the natural amino acid L-cysteine. | 2.76 | 3 | 0 | acetylcysteine;
L-cysteine derivative;
N-acetyl-L-amino acid | antidote to paracetamol poisoning;
antiinfective agent;
antioxidant;
antiviral drug;
ferroptosis inhibitor;
geroprotector;
human metabolite;
mucolytic;
radical scavenger;
vulnerary |
diethylmercury
[no description available] | 1.98 | 1 | 0 | | |
rhodamine 6g
rhodamine 6G: RN given refers to HCl | 2.06 | 1 | 0 | | |
potassium hydroxide
potassium hydroxide: RN given refers to cpd with MF of K-OH | 2.08 | 1 | 0 | alkali metal hydroxide | |
ferrous sulfide
ferrous sulfide: RN given refers to cpd with MF of Fe-S; mackinawite & troilite both have MF Fe-S | 2.25 | 1 | 0 | | |
pregnenolone carbonitrile
Pregnenolone Carbonitrile: A catatoxic steroid and microsomal enzyme inducer having significant effects on the induction of cytochrome P450. It has also demonstrated the potential for protective capability against acetaminophen-induced liver damage. | 1.98 | 1 | 0 | aliphatic nitrile | |
selenomethionine
[no description available] | 2.77 | 3 | 0 | selenoamino acid;
selenomethionines | plant metabolite |
selenocystine
selenocystine: RN given refers to parent cpd; structure | 2.15 | 1 | 0 | diselenide;
selenoamino acid | |
paraquat
Paraquat: A poisonous dipyridilium compound used as contact herbicide. Contact with concentrated solutions causes irritation of the skin, cracking and shedding of the nails, and delayed healing of cuts and wounds.. paraquat : An organic cation that consists of 4,4'-bipyridine bearing two N-methyl substituents loctated at the 1- and 1'-positions. | 2.21 | 1 | 0 | organic cation | geroprotector;
herbicide |
dithiothreitol
1,4-dimercaptobutane-2,3-diol : A glycol that is butane-2,3-diol in which a hydrogen from each of the methyl groups is replaced by a thiol group.. 1,4-dithiothreitol : The threo-diastereomer of 1,4-dimercaptobutane-2,3-diol. | 2.47 | 2 | 0 | 1,4-dimercaptobutane-2,3-diol;
butanediols;
dithiol;
glycol;
thiol | chelator;
human metabolite;
reducing agent |
manganese
Manganese: A trace element with atomic symbol Mn, atomic number 25, and atomic weight 54.94. It is concentrated in cell mitochondria, mostly in the pituitary gland, liver, pancreas, kidney, and bone, influences the synthesis of mucopolysaccharides, stimulates hepatic synthesis of cholesterol and fatty acids, and is a cofactor in many enzymes, including arginase and alkaline phosphatase in the liver. (From AMA Drug Evaluations Annual 1992, p2035). manganese(4+) : A manganese cation that is monoatomic and has a formal charge of +4. | 2.17 | 1 | 0 | elemental manganese;
manganese group element atom | Escherichia coli metabolite;
micronutrient |
mercury
Mercury: A silver metallic element that exists as a liquid at room temperature. It has the atomic symbol Hg (from hydrargyrum, liquid silver), atomic number 80, and atomic weight 200.59. Mercury is used in many industrial applications and its salts have been employed therapeutically as purgatives, antisyphilitics, disinfectants, and astringents. It can be absorbed through the skin and mucous membranes which leads to MERCURY POISONING. Because of its toxicity, the clinical use of mercury and mercurials is diminishing.. mercury(0) : Elemental mercury of oxidation state zero. | 7.61 | 70 | 0 | elemental mercury;
zinc group element atom | neurotoxin |
tungsten
Tungsten: A metallic element with the atomic symbol W, atomic number 74, and atomic weight 183.85. It is used in many manufacturing applications, including increasing the hardness, toughness, and tensile strength of steel; manufacture of filaments for incandescent light bulbs; and in contact points for automotive and electrical apparatus. | 2.6 | 1 | 0 | chromium group element atom | micronutrient |
cadmium
Cadmium: An element with atomic symbol Cd, atomic number 48, and atomic weight 112.41. It is a metal and ingestion will lead to CADMIUM POISONING.. elemental cadmium : An element in the zinc group of the periodic table with atomic number 48, atomic mass 112, M.P. 321degreeC, and B.P. 765degreeC). An odourless, tasteless, and highly poisonous soft, ductile, lustrous metal with electropositive properties. It has eight stable isotopes: (106)Cd, (108)Cd,(110)Cd, (111)Cd, (112)Cd, (113)Cd, (114)Cd and (116)Cd, with (112)Cd and (114)Cd being the most common. | 3.02 | 4 | 0 | cadmium molecular entity;
zinc group element atom | |
chromium
Chromium: A trace element that plays a role in glucose metabolism. It has the atomic symbol Cr, atomic number 24, and atomic weight 52. According to the Fourth Annual Report on Carcinogens (NTP85-002,1985), chromium and some of its compounds have been listed as known carcinogens.. chromium ion : An chromium atom having a net electric charge.. chromium atom : A chromium group element atom that has atomic number 24. | 2.07 | 1 | 0 | chromium group element atom;
metal allergen | micronutrient |
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. | 4.13 | 4 | 0 | copper group element atom;
elemental gold | |
uranium
Uranium: A radioactive element of the actinide series of metals. It has an atomic symbol U, atomic number 92, and atomic weight 238.03. U-235 is used as the fissionable fuel in nuclear weapons and as fuel in nuclear power reactors. | 2.08 | 1 | 0 | actinoid atom;
f-block element atom;
monoatomic uranium | |
mercuric chloride
Mercuric Chloride: Mercury chloride (HgCl2). A highly toxic compound that volatizes slightly at ordinary temperature and appreciably at 100 degrees C. It is corrosive to mucous membranes and used as a topical antiseptic and disinfectant.. mercury dichloride : A mercury coordination entity made up of linear triatomic molecules in which a mercury atom is bonded to two chlorines. Water-soluble, it is highly toxic. Once used in a wide variety of applications, including preserving wood and anatomical specimens, embalming and disinfecting, as an intensifier in photography, as a mordant for rabbit and beaver furs, and freeing gold from lead, its use has markedly declined as less toxic alternatives have been developed. | 2.07 | 1 | 0 | mercury coordination entity | sensitiser |
sodium selenite
disodium selenite : An inorganic sodium salt composed of sodium and selenite ions in a 2:1 ratio. | 2.48 | 2 | 0 | inorganic sodium salt;
selenite salt | nutraceutical |
glutamic acid
Glutamic Acid: A non-essential amino acid naturally occurring in the L-form. Glutamic acid is the most common excitatory neurotransmitter in the CENTRAL NERVOUS SYSTEM.. glutamic acid : An alpha-amino acid that is glutaric acid bearing a single amino substituent at position 2. | 2.48 | 2 | 0 | glutamic acid;
glutamine family amino acid;
L-alpha-amino acid;
proteinogenic amino acid | Escherichia coli metabolite;
ferroptosis inducer;
micronutrient;
mouse metabolite;
neurotransmitter;
nutraceutical |
tetracyanoquinodimethane
tetracyanoquinodimethane: structure. tetracyanoquinodimethane : A quinodimethane that is p-quinodimethane in which the methylidene hydrogens are replaced by cyano groups. | 2.05 | 1 | 0 | alicyclic compound;
nitrile;
quinodimethane | |
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. | 2.07 | 1 | 0 | proanthocyanidin | |
proanthocyanidin
proanthocyanidin: RN given refers to proanthocyanidin A; Cannabinoid Receptor CB1 antagonist. proanthocyanidin : A flavonoid oligomer obtained by the the condensation of two or more units of hydroxyflavans. | 2.07 | 1 | 0 | | |
selenodiglutathione
selenodiglutathione : A thioselenide in which a selenium atom is attached to the sulfur atoms of two molecules of glutathione. It is an initial metabolite of selenite, SeO3(2-). | 2.05 | 1 | 0 | glutathione derivative;
thioselenide | Escherichia coli metabolite;
metabolite |
t 61
T 61: for euthanasia of animals; each milliliter contains 200 mg of N-(2-(m-methoxyphenyl)-2-ethylbutyl)-gamma- hydroxybutyramide, 50 mg of 4,4'-methylenebis(cyclohexyltrimethylammonium iodide), 5 mg of tetracaine HCl, with 0.6 ml dimethylformamide in distilled water | 2.08 | 1 | 0 | | |
methylmercuric chloride
methylmercuric chloride: RN given refers to unlabeled cpd | 2.9 | 4 | 0 | chlorine molecular entity;
mercury coordination entity;
one-carbon compound | |
dithizone
Dithizone: Chelating agent used for heavy metal poisoning and assay. It causes diabetes. | 2.07 | 1 | 0 | | |
succimer
Succimer: A mercaptodicarboxylic acid used as an antidote to heavy metal poisoning because it forms strong chelates with them.. succimer : A sulfur-containing carboxylic acid that is succinic acid bearing two mercapto substituents at positions 2 and 3. A lead chelator used as an antedote to lead poisoning. | 1.99 | 1 | 0 | dicarboxylic acid;
dithiol;
sulfur-containing carboxylic acid | chelator |
cystine
[no description available] | 2.15 | 1 | 0 | | |
alizarin red s
Alizarin Red S: RN given refers to parent cpd; structure. alizarin red S : An organic sodium salt having 3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate as the counterion. It is commonly used to stain embryo skeletons in cleared whole mounts, usually of small mammals. | 7 | 1 | 0 | organic sodium salt;
organosulfonate salt | histological dye |
bilirubin
[no description available] | 1.98 | 1 | 0 | biladienes;
dicarboxylic acid | antioxidant;
human metabolite;
mouse metabolite |
lead
Lead: A soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.2, symbol Pb. | 2.52 | 2 | 0 | carbon group element atom;
elemental lead;
metal atom | neurotoxin |
aluminum
Aluminum: A metallic element that has the atomic number 13, atomic symbol Al, and atomic weight 26.98. | 2.08 | 1 | 0 | boron group element atom;
elemental aluminium;
metal atom | |
arsenic
Arsenic: A shiny gray element with atomic symbol As, atomic number 33, and atomic weight 75. It occurs throughout the universe, mostly in the form of metallic arsenides. Most forms are toxic. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), arsenic and certain arsenic compounds have been listed as known carcinogens. (From Merck Index, 11th ed) | 2.8 | 3 | 0 | metalloid atom;
pnictogen | micronutrient |
selenium
Selenium: An element with the atomic symbol Se, atomic number 34, and atomic weight 78.97. It is an essential micronutrient for mammals and other animals but is toxic in large amounts. Selenium protects intracellular structures against oxidative damage. It is an essential component of GLUTATHIONE PEROXIDASE. | 3.17 | 5 | 0 | chalcogen;
nonmetal atom | micronutrient |
selenocysteine
Selenocysteine: A naturally occurring amino acid in both eukaryotic and prokaryotic organisms. It is found in tRNAs and in the catalytic site of some enzymes. The genes for glutathione peroxidase and formate dehydrogenase contain the TGA codon, which codes for this amino acid.. selenocysteine : An alpha-amino acid that consists of alanine where one of the methyl hydrogens is substituted with a seleno group. | 2.05 | 1 | 0 | | |
trimethyllead
[no description available] | 2.03 | 1 | 0 | | |
beta-escin
[no description available] | 2.11 | 1 | 0 | | |
chlorophyll a
Chlorophyll: Porphyrin derivatives containing magnesium that act to convert light energy in photosynthetic organisms.. chlorophyll : A family of magnesium porphyrins, defined by the presence of a fifth ring beyond the four pyrrole-like rings. The rings can have various side chains which usually include a long phytol chain. | 2.05 | 1 | 0 | chlorophyll;
methyl ester | cofactor |
glutaminase
[no description available] | 2.07 | 1 | 0 | | |
deoxyguanosine
[no description available] | 2.07 | 1 | 0 | purine 2'-deoxyribonucleoside;
purines 2'-deoxy-D-ribonucleoside | Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
8-hydroxy-2'-deoxyguanosine
8-Hydroxy-2'-Deoxyguanosine: Common oxidized form of deoxyguanosine in which C-8 position of guanine base has a carbonyl group.. 8-hydroxy-2'-deoxyguanosine : Guanosine substituted at the purine 8-position by a hydroxy group. It is used as a biomarker of oxidative DNA damage. | 2.07 | 1 | 0 | guanosines | biomarker |
metallothionein
Metallothionein: A low-molecular-weight (approx. 10 kD) protein occurring in the cytoplasm of kidney cortex and liver. It is rich in cysteinyl residues and contains no aromatic amino acids. Metallothionein shows high affinity for bivalent heavy metals. | 3.09 | 1 | 0 | | |