Sigma-Aldrich
Polyethylene Glycol Molecular Biology, 2 kg
- Part Number:
- MIL-P5413-2KG
- Lead Time:
- 7-14 days
- Minimum Purchase:
- 1 unit
- Shipping:
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- Quantity:
- each
- Size:
- 2 kg
- Style:
- chemical
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Description
Polyethylene Glycol Molecular Biology, 2 Kg
Synonym: PEG
- CAS Number 25322-68-3
- Linear Formula H(OCH2CH2)nOH
- MDL number MFCD00081839
- PubChem Substance ID 24898639
- NACRES NA.31
| Quality Level | 200 |
| grade | for molecular biology |
| form | powder |
| mol wt | average mol wt 8,000 |
| solubility | water: soluble (approximately 630 mg/ml, 20 °C) |
| density | 1.0845 g/mL at 70 °C |
| 1.0689 g/mL at 90 °C | |
| foreign activity | DNase, RNase and NICKase, none detected |
General description
Polyethylene glycol (PEG) is a polymer of ethylene oxide and water, obtained upon condensation. PEGs are susceptible to oxidative degradation in the presence of air. Minimizing the exposure of PEG to elevated temperatures and/or exposure to oxygen or addition of an antioxidant can limit the amount of degradation. PEGs do not hydrolyze or deteriorate upon storage. PEGs do not support the growth of molds.
Polyethylene glycol (PEG) is used in detergents, emulsifying agents, soaps, metal costing process, pharmaceutical preparations and cosmetics. PEG is commonly used as a lubricant. It′s application is also observed in chromatographic stationary phases. PEG prevents crystal formation in emulsions.
Application
Poly(ethylene glycol) has been used:
• in protoplast suspension
• to prevent phase separation in emulsion
• in phage tail-like particles precipitation
• for purifying and intensifying products of polymerase chain reaction
Eyeshields, Gloves, type N95 (US)
RIDADR NONH for all modes of transport
WGK Germany 1
Documents
Warnings
Note: These chemicals are for research & laboratory use only. Your order will not be processed if you do not work for, and ship to, a registered laboratory or research facility. Not for topical applications. An official Declaration of Use form may be required.
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WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. Prop 65 Warning
Please note: This product is not returnable.