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4792-15-8

4792-15-8

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4792-15-8 Usage

Description

Pentaethylene glycol is a polymer consisting of ethylene glycol monomers and two terminal hydroxyl groups. The PEG chain increases the water solubility of a compound in aqueous media. Increasing the number of ethylene glycol units within the entire chain improves the solubility properties of the PEG linker.

Chemical Properties

colourless liquid

Uses

Different sources of media describe the Uses of 4792-15-8 differently. You can refer to the following data:
1. Intermediate in the synthesis of cyclic and noncyclic polyethers, complexing agents and immobilized phase-transfer catalysts
2. Pentaethylene glycol is part of a group of compounds called polyethylene glycols (PEGs), which are major byproducts of non-ionic surfactants biodegradation. Pentaethylene glycol is a useful synthetic intermediate, and is used as a reagent to synthesize macrocyclic oligoesters through lipase-catalysis.

Synthesis Reference(s)

Synthetic Communications, 16, p. 19, 1986 DOI: 10.1080/00397918608057683

Check Digit Verification of cas no

The CAS Registry Mumber 4792-15-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,7,9 and 2 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4792-15:
(6*4)+(5*7)+(4*9)+(3*2)+(2*1)+(1*5)=108
108 % 10 = 8
So 4792-15-8 is a valid CAS Registry Number.
InChI:InChI=1/C10H22O6/c11-1-3-13-5-7-15-9-10-16-8-6-14-4-2-12/h11-12H,1-10H2

4792-15-8Relevant articles and documents

Photocatalytic Degradation of Hexaethylene Glycol

Simangoye Ngobissi, Drocilia Ednah,Soufi, Jihène,Vanoye, Laurent,Richard, Dominique

, p. 1608 - 1614 (2017/08/29)

Abstract: Polyethylene glycol (PEG) photodegradation was studied in water under UV irradiation in the presence of catalytic amount of TiO2 using hexaethylene glycol as a model compound. Full conversion was achieved in 7 h with an average quantum yield around 1%. Formic acid was found to be the main intermediate and was slower to oxidize into CO2 (traces remains after 24 h). The other intermediates [lower PEG, oxidized PEG (formates, aldehydes and acids, acetic acid)] of the photodegradation have also been identified and quantified. A mechanism based on previous literature but also taking into account these new observations is proposed. Graphical Abstract: [Figure not available: see fulltext.].

Novel C1-symmetric chiral crown ethers bearing rosin acids groups: Synthesis and enantiomeric recognition for ammonium salts

Liu, Lu-Zhi,He, Chun-Huan,Yang, Lin,Huang, Yan,Wu, Qiang,Duan, Wen-Gui,Wang, Heng-Shan,Pan, Ying-Ming

, p. 9545 - 9553 (2015/03/05)

Four types of novel C1-symmetric chiral crown ethers including 28-crown-8, 20-crown-6, 17-crown-5 and 14-crown-3 (9a-m) were synthesized and their enantiodiscriminating abilities with protonated primary amines (10-14) were examined by 1H NMR spectroscopy. 20-crown-6 crown ethers exhibited good chiral recognition properties toward these guests and showed different complementarity to some chiral guests, indicating that 20-crown-6 crown ethers could be used as a chiral NMR solvating agent to determine the enantiopurity of these guests. In addition, the binding model and binding site between the hosts and guests were also studied by the computational modeling and experimental calculation.

A Highly Selective Synthesis of Monodisperse Oligo(ethylene glycols)

Keegstra, Erik M. D.,Zwikker, Jan W.,Roest, Martin R.,Jenneskens, Leonardus W.

, p. 6678 - 6680 (2007/10/02)

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