Poly(ethylene glycol)
SIGMA/84797 - BioUltra, 2,000
Synonym: Polyethylene glycol; PEG
CAS Number: 25322-68-3
MDL Number: MFCD00081839
Linear Formula: H(OCH2CH2)nOH
Product Type: Chemical
λ | 50 mg/mL in H2O |
anion traces | chloride (Cl-): ≤50 mg/kg |
sulfate (SO42-): ≤50 mg/kg | |
cation traces | Al: ≤5 mg/kg |
As: ≤0.1 mg/kg | |
Ba: ≤5 mg/kg | |
Bi: ≤5 mg/kg | |
Ca: ≤10 mg/kg | |
Cd: ≤5 mg/kg | |
Co: ≤5 mg/kg | |
Cr: ≤5 mg/kg | |
Cu: ≤5 mg/kg | |
Fe: ≤5 mg/kg | |
K: ≤200 mg/kg | |
Li: ≤5 mg/kg | |
Mg: ≤5 mg/kg | |
Mn: ≤5 mg/kg | |
Mo: ≤5 mg/kg | |
Na: ≤200 mg/kg | |
Ni: ≤5 mg/kg | |
Pb: ≤5 mg/kg | |
Sr: ≤5 mg/kg | |
Zn: ≤5 mg/kg | |
form | powder |
impurities | insoluble matter:, passes filter test |
≤0.001% peroxides (as H2O2): | |
InChI | 1S/C2H6O2/c3-1-2-4/h3-4H, |
InChI key | LYCAIKOWRPUZTN-UHFFFAOYSA |
mol wt | Mr 1900-2200 |
mp | 50-53 °C |
pH | 5.5-7.0 (25 °C, 50 mg/mL in H2O) |
product line | BioUltra |
Quality Level | 200 |
SMILES string | C(CO)O |
solubility | H2O: 50 mg/mL at 25 °C, clear, colorless |
UV absorption | λ: 260 nm Amax: ≤0.1 |
λ: 280 nm Amax: ≤0.04 |
Application: | Poly(ethylene glycol) has been used: • as a constituent in the preparation of liquid desiccant solutions • as a precipitating agent and additive in protein crystallization • as a representative biocompatible polymer to decipher its interactions with cellular system at molecular level |
General description: | Poly(ethylene glycol) (PEG) is a non-ionic hydrophilic polymer and is available in different molecular weights. It helps in the purification and crystal growth of proteins and nucleic acids. PEG and dextran together result in aqueous polymer two phase system, which is required for the purification of biological materials. PEG also interacts with cell membrane, thereby allowing cell fusion. It exhibitsstealth effect, prolonged blood circulation and excellent biocompatibility. PEG has an ability to elicit hypersensitivity reactions via stimulating complement pathway. |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 1 |
Flash Point(F) | 281.5 °F - closed cup |
Flash Point(C) | 138.6 °C - closed cup |
mp | 50-53 °C |
UNSPSC | 12352104 |