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4792-15-8

4792-15-8

Identification

  • Product Name:3,6,9,12-Tetraoxatetradecane-1,14-diol

  • CAS Number: 4792-15-8

  • EINECS:225-341-4

  • Molecular Weight:238.281

  • Molecular Formula: C10H22 O6

  • HS Code:2909499000

  • Mol File:4792-15-8.mol

Synonyms:Pentaethyleneglycol (6CI,7CI,8CI); 1,2-Bis[2-(2-hydroxyethoxy)ethoxy]ethane;2,4,6,8-Tetraoxadecane-1,10-diol; 3,4,7,8,11,12,15,16-Octaoxaoctadecane-1,18-diol

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  • Hazard Codes:Xi

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  • Manufacture/Brand:Usbiological
  • Product Description:Pentaethylene glycol
  • Packaging:5g
  • Price:$ 355
  • Delivery:In stock
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  • Manufacture/Brand:TRC
  • Product Description:Pentaethylene Glycol
  • Packaging:50g
  • Price:$ 325
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  • Manufacture/Brand:TRC
  • Product Description:Pentaethylene Glycol
  • Packaging:1g
  • Price:$ 110
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  • Manufacture/Brand:TCI Chemical
  • Product Description:Pentaethylene Glycol >95.0%(GC)
  • Packaging:5g
  • Price:$ 75
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  • Manufacture/Brand:TCI Chemical
  • Product Description:Pentaethylene Glycol >95.0%(GC)
  • Packaging:25g
  • Price:$ 236
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  • Manufacture/Brand:SynQuest Laboratories
  • Product Description:3,6,9,12-Tetraoxatetradecane-1,14-diol
  • Packaging:10 g
  • Price:$ 120
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  • Manufacture/Brand:Sigma-Aldrich
  • Product Description:Pentaethylene glycol 98%
  • Packaging:25g
  • Price:$ 351
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  • Manufacture/Brand:Sigma-Aldrich
  • Product Description:Pentaethylene glycol 98%
  • Packaging:5g
  • Price:$ 88.9
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  • Manufacture/Brand:purepeg
  • Product Description:Pentaethylene Glycol min.95%
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  • Manufacture/Brand:purepeg
  • Product Description:Pentaethylene Glycol min.95%
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Relevant articles and documentsAll total 13 Articles be found

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.].

Highly efficient synthesis of monodisperse poly(ethylene glycols) and derivatives through macrocyclization of oligo(ethylene glycols)

Zhang, Hua,Li, Xuefei,Shi, Qiuyan,Li, Yu,Xia, Guiquan,Chen, Long,Yang, Zhigang,Jiang, Zhong-Xing

supporting information, p. 3763 - 3767 (2015/03/18)

A macrocyclic sulfate (MCS)-based approach to monodisperse poly(ethylene glycols) (M-PEGs) and their monofunctionalized derivatives has been developed. Macrocyclization of oligo(ethylene glycols) (OEGs) provides MCS (up to a 62-membered macrocycle) as versatile precursors for a range of monofunctionalized M-PEGs. Through iterative nucleophilic ring-opening reactions of MCS without performing group protection and activation, a series of M-PEGs, including the unprecedented 64-mer (2850Da), can be readily prepared. Synthetic simplicity coupled with versatility of this new strategy may pave the way for broader applications of M-PEGs. Macrocycles make synthesis easier: Convenient macrocyclization of the OEGs provides versatile macrocyclic sulfates. These compounds are cornerstones for both monofunctionalization of OEGs and highly efficient synthesis of monodisperse PEGs and derivatives, including an unprecedented 64-mer.

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.

Valency platform molecules comprising carbamate linkages

-

, (2008/06/13)

This invention pertains generally to valency molecules, such as valency platform molecules which act as scaffolds to which one or more molecules may be covalently tethered to form a conjugate. More particularly, the present invention pertains to valency platform molecules which comprise a carbamate linkage (i.e., —O—C(=O)—N). In one aspect, the present invention pertains to valency platforms comprising carbamate linkages, which molecules have the structure of any one of Formulae I, II, or III, shown in FIG. 1. In one aspect, the present invention pertains to valency platforms comprising carbamate linkages, which molecules have the structure of any one of Formulae IV, V, or VI, shown in FIG. 8. The present invention also pertains to methods of preparing such valency platform molecules, conjugates comprising such valency platform molecules, and methods of preparing such conjugates.

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)

-

Process route upstream and downstream products

Process route

pentaethylene glycol
2615-15-8

pentaethylene glycol

formic acid
64-18-6

formic acid

Tetraethylene glycol
112-60-7

Tetraethylene glycol

Pentaethylene glycol
4792-15-8

Pentaethylene glycol

ethylene glycol
107-21-1

ethylene glycol

acetic acid
64-19-7,77671-22-8

acetic acid

diethylene glycol
111-46-6

diethylene glycol

2,2'-[1,2-ethanediylbis(oxy)]bisethanol
112-27-6

2,2'-[1,2-ethanediylbis(oxy)]bisethanol

Conditions
Conditions Yield
With titanium(IV) oxide; In water; for 24h; Concentration; UV-irradiation;
1,1,1,18,18,18-hexaphenyl-2,5,8,11,14,17-hexaoxaoctadecane
144270-95-1

1,1,1,18,18,18-hexaphenyl-2,5,8,11,14,17-hexaoxaoctadecane

Pentaethylene glycol
4792-15-8

Pentaethylene glycol

Conditions
Conditions Yield
With hydrogen; palladium on activated charcoal; In dichloromethane; at 25 ℃; for 96h; under 3040 Torr;
96%
C<sub>24</sub>H<sub>34</sub>O<sub>6</sub>
60389-48-2

C24H34O6

Pentaethylene glycol
4792-15-8

Pentaethylene glycol

Conditions
Conditions Yield
With hydrogen; palladium on activated charcoal; In methanol; at 60 ℃; for 1.5h; under 75006 Torr;
95%
ethylene glycol
107-21-1

ethylene glycol

1,2-bis(2-chloroethoxy)ethane
112-26-5,27252-69-3

1,2-bis(2-chloroethoxy)ethane

Pentaethylene glycol
4792-15-8

Pentaethylene glycol

Conditions
Conditions Yield
With potassium hydroxide; at 100 ℃; for 24h;
45%
at 110 - 120 ℃; for 10h;
28%
With sodium hydride;
With potassium hydroxide;
With sodium; Heating;
With potassium hydroxide; at 80 ℃; for 48h;
With potassium hydroxide; for 36h; Inert atmosphere; Reflux;
2,2'-[1,2-ethanediylbis(oxy)]bisethanol
112-27-6

2,2'-[1,2-ethanediylbis(oxy)]bisethanol

Pentaethylene glycol
4792-15-8

Pentaethylene glycol

Conditions
Conditions Yield
With sodium hydroxide; chloroform; benzenesulfonyl chloride; Erwaermen des Reaktionsprodukts mit Natrium-diaethylenglykolat in Diaethylenglykol;
Multi-step reaction with 3 steps
1: 73 percent / aq. 50percent sodium hydroxide / 24 h / 100 °C
2: 53 percent / sodium hydride / tetrahydrofuran / 24 h / Heating
3: 95 percent / hydrogen / 10percent palladium-charcoal / methanol / 1.5 h / 60 °C / 75006 Torr
With sodium hydroxide; hydrogen; sodium hydride; palladium on activated charcoal; In tetrahydrofuran; methanol;
Multi-step reaction with 3 steps
1: 99 percent / KOH / CH2Cl2 / 3 h / 0 °C
2: 1) NaH / 1) THF, 24 h, 2) 96 h
3: 96 percent / H2 / 10percent Pd/C / CH2Cl2 / 96 h / 25 °C / 3040 Torr
With potassium hydroxide; hydrogen; sodium hydride; palladium on activated charcoal; In dichloromethane;
Multi-step reaction with 5 steps
1.1: thionyl chloride; N-ethyl-N,N-diisopropylamine; dmap / dichloromethane / 1 h / 0 °C / Inert atmosphere
2.1: sodium periodate; ruthenium(III) chloride trihydrate / acetonitrile; tetrachloromethane; water / 0 - 20 °C / Inert atmosphere
3.1: sodium hydride / mineral oil; tetrahydrofuran / 0.25 h / 0 °C / Inert atmosphere
3.2: 12 h / 0 - 20 °C / Inert atmosphere
4.1: sulfuric acid; water / mineral oil; tetrahydrofuran / 3 h / 20 °C / Inert atmosphere
5.1: toluene-4-sulfonic acid / methanol / 12 h / 20 °C / Inert atmosphere
With dmap; sodium periodate; thionyl chloride; ruthenium(III) chloride trihydrate; sulfuric acid; water; sodium hydride; toluene-4-sulfonic acid; N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; methanol; tetrachloromethane; dichloromethane; water; acetonitrile; mineral oil;
triethylene glycol di-(p-toluenesulfonate)
19249-03-7

triethylene glycol di-(p-toluenesulfonate)

Pentaethylene glycol
4792-15-8

Pentaethylene glycol

Conditions
Conditions Yield
Multi-step reaction with 2 steps
1: 1) NaH / 1) THF, 24 h, 2) 96 h
2: 96 percent / H2 / 10percent Pd/C / CH2Cl2 / 96 h / 25 °C / 3040 Torr
With hydrogen; sodium hydride; palladium on activated charcoal; In dichloromethane;
triethylene glycol monobenzyl ether
55489-58-2,1201808-31-2

triethylene glycol monobenzyl ether

Pentaethylene glycol
4792-15-8

Pentaethylene glycol

Conditions
Conditions Yield
Multi-step reaction with 2 steps
1: 53 percent / sodium hydride / tetrahydrofuran / 24 h / Heating
2: 95 percent / hydrogen / 10percent palladium-charcoal / methanol / 1.5 h / 60 °C / 75006 Torr
With hydrogen; sodium hydride; palladium on activated charcoal; In tetrahydrofuran; methanol;
2-(2-{2-[2-(trityloxyethoxy)ethoxy]ethoxy}ethoxy)ethanol
141282-24-8

2-(2-{2-[2-(trityloxyethoxy)ethoxy]ethoxy}ethoxy)ethanol

Pentaethylene glycol
4792-15-8

Pentaethylene glycol

Conditions
Conditions Yield
With toluene-4-sulfonic acid; In methanol; at 20 ℃; for 12h; Inert atmosphere;
13.31 g
diethylene glycol
111-46-6

diethylene glycol

Pentaethylene glycol
4792-15-8

Pentaethylene glycol

Conditions
Conditions Yield
With iodine; at 190 ℃;
1,3,6,9,2λ<sup>4</sup>-Tetraoxathia-2-cycloundecanon
27712-99-8

1,3,6,9,2λ4-Tetraoxathia-2-cycloundecanon

Pentaethylene glycol
4792-15-8

Pentaethylene glycol

Conditions
Conditions Yield
Multi-step reaction with 4 steps
1.1: sodium periodate; ruthenium(III) chloride trihydrate / acetonitrile; tetrachloromethane; water / 0 - 20 °C / Inert atmosphere
2.1: sodium hydride / mineral oil; tetrahydrofuran / 0.25 h / 0 °C / Inert atmosphere
2.2: 12 h / 0 - 20 °C / Inert atmosphere
3.1: sulfuric acid; water / mineral oil; tetrahydrofuran / 3 h / 20 °C / Inert atmosphere
4.1: toluene-4-sulfonic acid / methanol / 12 h / 20 °C / Inert atmosphere
With sodium periodate; ruthenium(III) chloride trihydrate; sulfuric acid; water; sodium hydride; toluene-4-sulfonic acid; In tetrahydrofuran; methanol; tetrachloromethane; water; acetonitrile; mineral oil;

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