CasNo: 25322-68-3
Molecular Formula: C2nH4n+2On+1
Appearance: White waxy crystalline flakes
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Polyethylene glycols are a family of linear polymers formed by a base-catalyzed condensation reaction with repeating ethylene oxide units being added to ethylene. The molecular formula is (C2H4O)multH2O where mult denotes the average number of oxyethylene groups. The molecular weight can range from 200 to several million corresponding to the number of oxyethylene groups. The higher-molecular-weight materials (100 000 to 5 000 000) are also referred to as polyethylene oxides. The average molecular weight of any specific polyethylene glycol product falls within quite narrow limits (°5%). The number of ethylene oxide units or their approximate molecular weight (e.g., PEG-4 or PEG-200) commonly designates the nomenclature of specific polyethylene glycols. Polyethylene glycols with amolecular weight less than 600 are liquid, whereas those of molecular weight 1000 and above are solid. These materials are nonvolatile, water-soluble, tasteless, and odorless. They are miscible with water, alcohols, esters, ketones, aromatic solvents, and chlorinated hydrocarbons, but immiscible with alkanes, paraffins, waxes, and ethers.
Polyethylene glycol (Miralax) is another osmotic laxative that is colorless and tasteless once it is mixed.
A polymer used to precipitate proteins, viruses, DNA and RNA
The CAS number of Poly(ethylene glycol) is 25322-68-3.
More information of Poly(ethylene glycol) 25322-68-3 are:
CAS Number |
25322-68-3 |
Density |
1.27 g/mL at 25 °C |
Melting Point |
64-66 °C |
Boiling Point |
>250 °C |
Flash Point |
270 °C |
Vapor Pressure |
<0.01 mm Hg ( 20 °C) |
Refractive Index |
n20/D 1.469 |
HS CODE |
2909.49 |
PSA |
40.46000 |
LogP |
-1.02900 |
The chemical formula of Poly(ethylene glycol) is which containing , and the molecular weight of Poly(ethylene glycol) is
Polyethylene glycols are a family of linear polymers formed by a base-catalyzed condensation reaction with repeating ethylene oxide units being added to ethylene. The molecular formula is (C2H4O)multH2O where mult denotes the average number of oxyethylene groups. The molecular weight can range from 200 to several million corresponding to the number of oxyethylene groups. The higher-molecular-weight materials (100 000 to 5 000 000) are also referred to as polyethylene oxides. The average molecular weight of any specific polyethylene glycol product falls within quite narrow limits (°5%). The number of ethylene oxide units or their approximate molecular weight (e.g., PEG-4 or PEG-200) commonly designates the nomenclature of specific polyethylene glycols. Polyethylene glycols with amolecular weight less than 600 are liquid, whereas those of molecular weight 1000 and above are solid. These materials are nonvolatile, water-soluble, tasteless, and odorless. They are miscible with water, alcohols, esters, ketones, aromatic solvents, and chlorinated hydrocarbons, but immiscible with alkanes, paraffins, waxes, and ethers.
Relevant articles related to Poly(ethylene glycol):
Article |
Source |
PROSTATE SPECIFIC MEMBRANE ANTIGEN (PSMA) TARGETED NANOPARTICLES FOR THERAPY OF PROSTATE CANCER |
- Page/Page column 37-38, (2009/07/03) |
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