polyethylene glycol

polyethylene glycol
(PEG) [NF] a generic name for mixtures of condensation polymers of ethylene oxide and water, represented by the general formula H(OCH2CH2)n OH, in which n is greater than or equal to 4. The term is used in combination with a numeric suffix which indicates the approximate average molecular weight. Those with average molecular weights between 200 and 700 are liquid and those above 1000 are waxlike solids: p. glycol 3000 (n varies from 5 to 5.75) is used as a solvent and dispensing agent in pharmaceutical preparations; p. glycol 400 (n varies from 8.2 to 9.1), p. glycol 600 (n varies from 12.5 to 13.9), and p. glycol 1500 (n varies from 29 to 36) are used as ointment and suppository bases; p. glycol 1540 (n varies from 28 to 36) is used as a vehicle in pharmaceutical preparations; p. glycol 3350 is used as a laxative; p. glycol 4000 (n varies from 68 to 84) and p. glycol 6000 (n varies from 158 to 204) are used as ointment and suppository bases and as tablet excipients. Called also macrogol.

Medical dictionary. 2011.

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  • Polyethylene glycol — IUPAC name poly(oxyethylene) {structure based}, poly(ethylene oxide) {source based} …   Wikipedia

  • Polyéthylène glycol — Macrogol Macrogol structure Général Synonymes polyéthylène glycol poly (oxyéthylène) PEG PEOX …   Wikipédia en Français

  • polyethylene glycol — Abbreviation: PEG A polymer having the general formula HOCH2(CH2OCH2)nCH2OH and available in a range of molecular weights. Thus PEG 1000 is a polyethylene glycol of average molecular weight 1000. PEG 4000 and 6000 are commonly used to promote… …   Glossary of Biotechnology

  • polyethylene glycol — noun : a member of the series of water soluble poly ether glycols HOCH2CH2(OCH2CH2)nOH higher than diethylene glycol and triethylene glycol that vary from water white liquids to waxy solids as the average molecular weight increases from 200 to… …   Useful english dictionary

  • polyethylene glycol — noun Any of a series of water soluble polymers, of general formula [CH CH O], used in detergents and as emulsifiers and plasticizers. Syn: PEG See Also: polyethylene, ethylene glycol, glycol, ethylene …   Wiktionary

  • polyethylene glycol — Chem. any of a series of polymers of ethylene glycol, having a molecular weight of from about 200 to 6000, obtained by condensation of ethylene glycol or of ethylene oxide and water, used as an emulsifying agent and lubricant in ointments, creams …   Universalium

  • polyethylene glycol — polyeth′ylene gly′col n. chem. any of a series of polymers of ethylene glycol, having a molecular weight from about 200 to 6000, used as an emulsifying agent and lubricant • Etymology: 1885–90 …   From formal English to slang

  • polyethylene glycol — noun Date: 1886 any of a series of polymers H(OCH2CH2)nOH where n is greater than three that vary from viscous liquids to waxy solids and are used especially as lubricants and in medical and biotechnological applications abbreviation PEG …   New Collegiate Dictionary

  • polyethylene glycol — A hydrophilic polymer that interacts with cell membranes and promotes fusion of cells to produce viable hybrids. Often used in producing hybridomas …   Dictionary of molecular biology

  • polyethylene glycol — see under P …   Medical dictionary

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