Pentaethylene glycol monododecyl ether

Pentaethylene glycol monododecyl ether^[1]

Names
IUPAC name 2-[2-[2-[2-(2-dodecoxyethoxy)ethoxy]ethoxy]ethoxy]ethanol
Other names Dodecylpentaglycol Laureth-5
Identifiers
CAS Number	3055-95-6
Abbreviations	C12E5
ChemSpider	17268 Y
Jmol interactive 3D	Image
PubChem	18281
InChI InChI=1S/C22H46O6/c1-2-3-4-5-6-7-8-9-10-11-13-24-15-17-26-19-21-28-22-20-27-18-16-25-14-12-23/h23H,2-22H2,1H3 Y Key: LAPRIVJANDLWOK-UHFFFAOYSA-N Y InChI=1/C22H46O6/c1-2-3-4-5-6-7-8-9-10-11-13-24-15-17-26-19-21-28-22-20-27-18-16-25-14-12-23/h23H,2-22H2,1H3 Key: LAPRIVJANDLWOK-UHFFFAOYAV
SMILES O(CCO)CCOCCOCCOCCOCCCCCCCCCCCC
Properties
Chemical formula	C22H46O6
Molar mass	406.59704
Density	0.963 g/mL at 20 °C
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Pentaethylene glycol monododecyl ether (C12E5) is a nonionic surfactant. Its critical micelle concentration (CMC) is 7×10⁻⁵ M at 25 °C.^[2]

Multilamellar vesicle formation

The lamellar phase at 40wt% of C12E5 dissolved in D₂O form multilamellar vesicles under shear rate.^[3]

See also

• Octaethylene glycol monododecyl ether, C12E8

References

1. ↑ Pentaethylene glycol monododecyl ether at Sigma-Aldrich
2. ↑ Kyoko Shinzawa-ltoh, Hidefumi Ueda, Shinya Yoshikawa, Hiroshi Aoyama, Eiki Yamashita, and Tomitake Tsukihara (1995). "Effects of Ethyleneglycol Chain Length of Dodecyl Polyethyleneglycol Monoether on the Crystallization of Bovine Heart Cytochrome c Oxidase". J. Mol. Biol. 246 (5): 572–575. doi:10.1016/S0022-2836(05)80106-8. PMID 7877177. 
3. ↑ Gentile, Luigi; Rossi, Cesare Oliviero; Olsson, Ulf; Ranieri, Giuseppe Antonio (2011). "Effect of Shear Rates on the MLV Formation and MLV Stability Region in the C12E5/D2O System: Rheology and Rheo-NMR and Rheo-SANS Experiments". Langmuir 27 (6): 2088. doi:10.1021/la1046047.