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1191-87-3

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1191-87-3 Usage

General Description

2,5,8,11,14,17-Hexaoxaoctadecane, also known as crown ether, is an organic chemical compound consisting of 18 carbon atoms with six oxygen atoms interspersed along the carbon chain. It belongs to a class of macrocyclic compounds called crown ethers, which are known for their ability to selectively bind to metal ions and complex with other organic molecules. Crown ethers have a wide range of applications in chemistry, including as phase transfer catalysts, ion-selective electrodes, and in supramolecular chemistry. The specific structure of 2,5,8,11,14,17-Hexaoxaoctadecane allows it to form stable complexes with alkali metal ions, and it has been studied for its potential use in ion-exchange chromatography and as a potential drug delivery agent due to its ability to encapsulate cations.

Check Digit Verification of cas no

The CAS Registry Mumber 1191-87-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,1,9 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1191-87:
(6*1)+(5*1)+(4*9)+(3*1)+(2*8)+(1*7)=73
73 % 10 = 3
So 1191-87-3 is a valid CAS Registry Number.
InChI:InChI=1/C12H26O6/c1-13-3-5-15-7-9-17-11-12-18-10-8-16-6-4-14-2/h3-12H2,1-2H3

1191-87-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name pentaglyme

1.2 Other means of identification

Product number -
Other names 1-methoxy-2-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethoxy]ethane

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1191-87-3 SDS

1191-87-3Downstream Products

1191-87-3Relevant articles and documents

Effects of hydration on the thermodynamic properties of aqueous ethylene glycol ether solutions

Schroedle, Simon,Hefter, Glenn,Buchner, Richard

, p. 513 - 522 (2005)

The densities and isobaric specific heat capacities of binary mixtures of water with various open-chain and cyclic ethylene glycol ethers have been measured at 298.15 K using vibrating tube densimetry, and flow or differential scanning calorimetry, respectively. Excess molar volumes were derived over the whole composition range. Molar isobaric heat capacities and the relative apparent thermodynamic quantities were determined in the water-rich region. The data reflect the changes in the structure and hydrogen-bond dynamics of water caused by these non-ionic solutes. The observed effects are discussed in terms of the influence of hydrophobic hydration on the thermodynamic properties of aqueous solutions. Correlations are given that enable the prediction of the thermodynamic properties of open-chain and cyclic oligo(ethylene oxide) ethers in their pure liquid state and at infinite dilution in water.

Kawauami et al.

, p. 3053 (1978)

METHOD FOR PRODUCING ALKYLENE GLYCOL DIETHERS

-

Page/Page column 7-9, (2008/06/13)

The invention concerns a method for producing alkylene glycol diethers by reacting a linear or cyclic ether with an alkylene oxide in the presence of a Lewis acid. The invention is characterized in that the reaction is continuously carried out in a microreactor.

Investigations on the influence of 2'-O-alkyl modifications on the base pairing properties of oligonucleotides

Werner, Doris,Brunar, Helmut,Noe, Christian R.

, p. 3 - 10 (2007/10/03)

The antisense strategy has gained wide acceptance as a promising drug development concept. Antisense drugs hybridize with selected complementary sequences in a highly specific manner. However, as a main prerequisite for extensive therapeutic use of this new class of drugs, selected structural modifications are required to adjust pharmacokinetic and pharmacodynamic behavior. In continuation of our earlier investigations on 2'-O-modified oligonucleotides (Gotten, M., Oberhauser, B., Brunar, H., Holzner, A., Issakides, G., Noe, C.R., Schaffer, G., Wagner, E., Bimstiel, M.L., 1991. 2'-O-methyl, 2'-O-ethyl oligoribonucleotides and phosphorothioate oligodeoxyribonucleotides as inhibitors of the in vitro U7 snRNP-dependent mRNA processing event. Nucleic Acids Res. 19, 2629-2635; Wagner, E., Oberhauser, B., Holzner, A., Brunar, H., Issakides, G., Schaffner, G., Gotten, M., Knollmuller, M., Noe, C.R., 1991. A simple procedure for the preparation of protected 2'-O-methyl or 2'-O-ethyl ribonucleoside-3'-O-phosphoramidites. Nucleic Acids Res. 19, 5965-5971) further series of modified oligonucleotides containing different modified 2'-O-adenosines have been synthesized. On the one hand linear alkyl moieties of increasing length, on the other hand oxyethylene moieties of corresponding length were introduced at the 2'-O-position of adenosine. Following another approach a cationic charge was introduced by insertion of an aminohexylmodification at the 2'-O-position of adenosine (Brunar, H., Haberhauer, G., Werner, D., Noe, C.R., 1994. 2'-O-Modified oligonucleotides: Synthesis and biophysical analysis. Eur. J. Pharm. Sci. 2, 150). Molecule dynamics simulations had shown that this cationic modification upon duplex formation leads to both intra- and interstrand interactions. To determine the influence of the different modifications, such as cationic charge, alkyl chainlength and introduction of oxygen into the chain, on duplex stability melting temperatures were measured by recording circular dichroism versus temperature.

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