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64018-25-3

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64018-25-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64018-25-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,0,1 and 8 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 64018-25:
(7*6)+(6*4)+(5*0)+(4*1)+(3*8)+(2*2)+(1*5)=103
103 % 10 = 3
So 64018-25-3 is a valid CAS Registry Number.
InChI:InChI=1/C8H4ClF13/c9-2-1-3(10,11)4(12,13)5(14,15)6(16,17)7(18,19)8(20,21)22/h1-2H2

64018-25-3Relevant articles and documents

A rationally designed perfluorinated host for the extraction of PFOA from water utilising non-covalent interactions

Omorodion, Harrison,Palenzuela, Miguel,Ruether, Manuel,Twamley, Brendan,Platts, James A.,Baker, Robert J.

, p. 7956 - 7968 (2018/05/24)

Perfluorooctanoic acid (PFOA) is a persistent organic pollutant and widespread in the environment. Three hosts have been synthesized based upon the formation of a fluorous cavity and hydrogen bonding receptors with the aim of extracting PFOA from water into organic solvents. The hosts based upon a calix[4]arene functionalized at the lower rim with amide groups and fluorous ponytails are effective for the quantitative removal of PFOA. Modification to a partial cone or a trisaminoamine framework reduces the conformational rigidity and lowers the extraction efficiency. A comprehensive NMR spectroscopic analysis both in solution and the solid state, along with other characterization techniques, has elucidated the stoichiometry of the host:guest species and the binding constants have been measured. A computational study has given further insight into the binding modes and corroborated the spectroscopic measurements.

Novel light-fluorous TEMPO reagents and their application in oxidation reactions

Dobbs, Adrian P.,Penny, Mark J.,Jones, Peter

scheme or table, p. 6955 - 6958 (2009/04/07)

The synthesis of two light-fluorous TEMPO derivatives is reported, along with their application in oxidation reactions.

Yield improvement in the electrochemical production of pefluorooctanoic acid

Napoli, M.,Scipioni, A.,Gambaretto, G. P.,Carlini, F. M.,Bertola, M.

, p. 261 - 264 (2007/10/02)

The possibility of obtaining real yield improvements in the industrial electrochemical production of perfluorooctanoic acid is discussed on the basis of recent experimental data obtained using perfluorohexyl acetyl chloride in place of octanoyl chloride as a starting material.In particular, the effect of the non-formation of cyclic byproducts on the yield of perfluoro-octanoic acid has been examined, as well as considering previous results obtained starting from a different partially fluorinated precursor, 4-perfluorobutyl butanoyl chloride.The yield of perfluoro-octanoic acid from perfluorohexyl acetyl chloride was less than expected, because of an accompanying increase in perfluoro-n-heptane formation.

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