| ethylene glycol | <chemical> A common ingredient in anti-freeze, very toxic to the liver if ingested (27 Sep 1997) |
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| ethylene glycols | An ethylene compound with two hydroxy groups (-oh) located on adjacent carbons. They are viscous and colourless liquids. Some are used as anaesthetics or hypnotics. However, the class is best known for their use as a coolant or antifreeze. (12 Dec 1998) |
| ethylene | <chemical, plant biology> Plant growth substance (phytohormone, plant hormone), involved in promoting growth, epinasty, fruit ripening, senescence and breaking of dormancy. Its action is closely linked with that of auxin. (18 Nov 1997) |
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| ethylene chlorohydrin | <chemical> 2-chloroethanol. Used as a solvent, in the manufacture of insecticide, and for treating sweet potatoes before planting. May cause nausea, vomiting, pains in head and chest, stupefaction. Irritates mucous membranes and causes kidney and liver degeneration. Chemical name: Ethanol, 2-chloro- (12 Dec 1998) |
| ethylene diamine tetra acetate | <chemical> A chemical that is used to remove all traces of magnesium and calcium ions from a solution because it binds tightly to them, in order to control unwanted side reactions with these metals during a laboratory process. Acronym: EDTA (11 Nov 1997) |
| ethylene dibromide | <chemical> 1,2-dibromoethane. An effective soil fumigant, insecticide, and nematocide. In humans, it causes severe burning of skin and irritation of the eyes and respiratory tract. Prolonged inhalation may cause liver necrosis. It is also used in gasoline. Members of this group have caused liver and lung cancers in rodents. According to the fourth annual report on carcinogens (ntp 85-002, 1985), 1,2-dibromoethane may reasonably be anticipated to be a carcinogen. Pharmacological action: carcinogens, insecticide. Chemical name: Ethane, 1,2-dibromo- (12 Dec 1998) |
| ethylene dichlorides | Toxic, chlorinated, saturated hydrocarbons. Include both the 1,1- and 1,2-dichloro isomers. The latter is considerably more toxic. It has a sweet taste, ethereal odour and has been used as a fumigant and intoxicant among sniffers. Has many household and industrial uses. (12 Dec 1998) |
| ethylene oxide | <chemical> Chemical name: Oxirane (12 Dec 1998) |
| ethylene tetrachloride | An anthelmintic against hookworm and other nematodes. Synonym: carbon dichloride, ethylene tetrachloride, tetrachloroethylene. (05 Mar 2000) |
| glycol | <chemistry> A thick, colourless liquid, C2H4(OH)2, of a sweetish taste, produced artificially from certain ethylene compounds. It is a diacid alcohol, intermediate between ordinary ethyl alcohol and glycerin. Any one of the large class of diacid alcohols, of which glycol proper is the type. Origin: Glycerin + -ol. See Glycerin. Source: Websters Dictionary (01 Mar 1998) |
| glycol ethers | Chemicals such as ethylene glycol monomethyl ether and ethylene glycol monoethyl ether; they are teratogens which induce testicular atrophy in animals. (05 Mar 2000) |
| monomethoxypolyethylene glycol-arginase | <chemical> Monomethylethylene glycol and arginase are attached covalently Pharmacological action: antineoplastic agent Synonym: mm-peg-arginase (26 Jun 1999) |
| monomethoxypolyethylene glycol-conjugated asparaginase | <chemical> Used in patients with haematological malignancies Synonym: peg(2)-asp, 2,4-bis(2-methoxypolyethyleneglycol)-6-chloro-s-triazine-conjugated l-asparaginase (26 Jun 1999) |
| monomethoxypolyethylene glycol-superoxide dismutase | <chemical> Pharmacological action: free radical scavengers Synonym: mpeg-sod (26 Jun 1999) |
| polyethylene glycol | <chemical> A hydrophilic polymer that interacts with cell membranes and promotes fusion of cells to produce viable hybrids. Often used in producing hybridomas. (18 Nov 1997) |
| polyethylene glycol dehydrogenase | <enzyme> Catalyses the first step in polyethylene glycol metabolism in bacteria Registry number: EC 1.1.1.- (26 Jun 1999) |
| polyethylene glycol-glutaminase-asparaginase | <chemical> Covalent attachment of polyethylene glycol to nonessential amine groups of enzyme renders it nonimmunogenic for treatment of leukaemia (EC 3.5.1.-) Pharmacological action: immunosuppressive agent Chemical name: glutaminase-asparaginase Synonym: polyethyleneglycol-l-glutaminase-l-asparaginase, peg-l-glutaminase-l-asparaginase (26 Jun 1999) |