Pentaethylene glycol monododecyl ether

Pentaethylene glycol monododecyl ether^[1]

IUPAC name 2-[2-[2-[2-(2-dodecoxyethoxy)ethoxy]ethoxy]ethoxy]ethanol
Other names Dodecylpentaglycol Laureth-5
Identifiers
CAS number	3055-95-6
PubChem	18281
ChemSpider	17268^Y
Jmol-3D images	Image 1
SMILES O(CCO)CCOCCOCCOCCOCCCCCCCCCCCC
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
Properties
Molecular formula	C₂₂H₄₆O₆
Molar mass	406.59704
Density	0.963 g/mL at 20 °C
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
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]

MLV Formation

Recently^[3] it has been showed that the lamellar phase at 40wt% of C12E5 dissolved in 2H2O form Multilamellar Vesicles under shear rate.

^ Pentaethylene glycol monododecyl ether at Sigma-Aldrich
^ 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.
^ Gentile L. , Oliviero Rossi C. , Olsson U. , Ranieri G.A. , " 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, 2011, Vol. 27, n. 6, pp. 2088–2092. [1]