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Polyethylene glycol 3,350 Monodisperse
Polyethylene glycol 3,350 Monodisperse

Polyethylene glycol 3,350 Monodisperse
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Applications
Crystallization Polyethylene glycol for formulating screens or for optimization
Features
Sterile filtered (0.22 micron) 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
United States Pharmacopeia (USP)/National Formulary (NF), Pharmacopoea Europaea (Ph. Eur.), and Food Chemicals Codex (FCC) grade PEG 3350. For research use only. Not for diagnostic use.

Polyethylene glycol 3,350
Synonym: PEG 3,350
H(OCH2CH2)nOH
Average Mr 3015-3685
CAS Number [25322-68-3]
EC Number 500-038-2
Merck 14,7568
MDL Number MFCD00081839
PubChem Substance ID 24898432
Polydispersity Index 1.05-1.10 (Polydispersity is a measure of the molecular weight distribution of a polymer. It is equal to Mw/Mn. That is to say, "weight-average molecular weight" divided by "number average molecular weight".)

Aldehyde: None detected
Peroxide: None detected

HR2-519 Measured pH range: 7.7 - 8.0 at 25°C
HR2-519 Measured Conductivity Range: 73.6 - 80.6 µS/cm at 25°C
HR2-519 Measured Refractive Index Range: 1.36572 - 1.36594 at 20°C
HR2-519 for use as a dehydrant with the Low Ionic Strength Screen (HR2-120)

HR2-527 Measured pH range: 8.7 - 9.8 at 25°C
HR2-527 Measured Conductivity Range: 44.0 - 55.1 µS/cm at 25°C
HR2-527 Measured Refractive Index Range: 1.40137 - 1.40207 at 20°C
CAT NO NAME DESCRIPTION
HR2-591 Polyethylene glycol 3,350 Monodisperse Powder - 500 g
Price Quantity
$145.00
CAT NO NAME DESCRIPTION
HR2-527 Polyethylene glycol 3,350 Monodisperse 50% w/v solution - 200 ml
Price Quantity
$98.00
References
1.McPherson, A. 1976, Crystallization of proteins from polyethylene glcyol. J. Biol. Chem. 251: 6300.
2.Crystal structure of a Soluble form of the human T Cell coreceptor CD8 at 2.6 A resolution. Leahy, DJ; Axel, R; Hendrickson, WA. Cell 68, 1145- 1162, 1992.
SUPPORT MATERIALS
HR2-591 SDS
HR2-527 SDS
Certificates of Analysis
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