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Polyethylene glycol monomethyl ether 2,000
Polyethylene glycol monomethyl ether 2,000

Polyethylene glycol monomethyl ether 2,000
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Applications
Crystallization grade Polyethylene glycol monomethyl ether 2,000 for formulating screens or for optimization
Features
Sterile filtered solution
Formulated in Type 1+ ultrapure water: 18.2 megaohm-cm resistivity at 25°C, < 5 ppb Total Organic Carbon, bacteria free (<1 Bacteria (CFU/ml)), pyrogen free (<0.03 Endotoxin (EU/ml)), RNase-free (< 0.01 ng/mL) and DNase-free (< 4 pg/µL)
Description
Solution made from Polyethylene glycol monomethyl ether 2,000
Synonyms: Methoxy poly(ethylene glycol) 2,000 or mono-Methyl polyethylene glycol 2,000
or PEG MME 2,000, or MPEG
CH3O(CH2CH2O)nH
Formula Weight (Mw) ~ 2,000
CAS Number [9004-74-4]
EC Number 215-801-2
RTECS PE8271000
MDL Number MFCD00084416
Melting Point (starting material) 52-56°C
Appearance (Solution): Colorless to Light Yellow to Light Brown, Clear
Aldehyde None detected
Peroxide None detected

Measured pH range: 7.0 - 8.9 at 25°C
Measured Conductivity Range: 28.0 - 60.2 µS/cm at 25°C
Measured Refractive Index Range: 1.40105 - 1.40205 at 20°C

Sterile filtered solution (0.22 micron) in sterile PETG bottle, purged with dry argon.
CAT NO NAME DESCRIPTION
HR2-613 Polyethylene glycol monomethyl ether 2,000 50% w/v solution - 200 ml
Price Quantity
$105.00
References
1.Poly(ethylene) glycol monomethyl ethers - an alternative to poly(ethylene) glycols in protein crystallization. A. M. Brzozowski and S. P. Tolley. Acta Cryst. (1994). D50, 466-468
2.Purification, crystallization and preliminary X-ray analysis of the catalytic domain of the Escherichia coli tRNase colicin D. K. Takahashi, T. Ogawa, M. Hidaka, K. Ohsawa, H. Masaki and S. Yajima. Acta Cryst. (2006). F62, 29-31
SUPPORT MATERIALS
SDS for HR2-613
Certificates of Analysis
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