Products > Optimize Reagents > Optimize - Polymers > Polyethylene glycol 3,350 Monodisperse
Polyethylene glycol 3,350 Monodisperse
Applications
- Crystallization Polyethylene glycol 3,350 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
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
Synonyms: 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
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
HR2-527 Measured Conductivity Range: 44.0 - 55.1 µS/cm at 25°C
HR2-527 Measured Refractive Index Range: 1.40137 - 1.40213 at 20°C
Support Material(s)
HR2-591 Polyethylene glycol 3,350 Monodisperse (Powder) SDS HR2-527 Polyethylene glycol 3,350 Monodisperse SDS
Certificate Of Analysis
References
1. 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.
2. McPherson, A. 1976, Crystallization of proteins from polyethylene glcyol. J. Biol. Chem. 251: 6300.