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338459-07-7

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338459-07-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 338459-07-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,8,4,5 and 9 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 338459-07:
(8*3)+(7*3)+(6*8)+(5*4)+(4*5)+(3*9)+(2*0)+(1*7)=167
167 % 10 = 7
So 338459-07-7 is a valid CAS Registry Number.

338459-07-7Relevant articles and documents

Synthesis of structurally weil-defined triglyceryl di-, tri-, and tetra-fatty acid esters as new oil gelators

Hamada, Masahiro,Terayama, Megumi,Kaneko, Kei-Ichi,Ooya, Tohru,Kishimoto, Takao,Nakajima, Noriyuki

experimental part, p. 3663 - 3669 (2009/06/18)

We are interested in developing chemically modified linear and cyclic polyglycerols and their esters that have a single polymerization degree and fine structure. Triglyceryl di-, tri-, and tetra-fatty acid esters were synthesized from common substrate as new prominent gelators. The triglyceryl esters were capable of gelling up cooking oils. A comparison of the gelation ability of structurally related compounds clarified that the introduction of alkyl chains of suitable length is required for effective gelation. Georg Thieme Verlag Stuttgart · New York.

Original synthesis of linear, branched and cyclic oligoglycerol standards

Cassel, Stephanie,Debaig, Catherine,Benvegnu, Thierry,Chaimbault, Patrick,Lafosse, Michel,Plusquellec, Daniel,Rollin, Patrick

, p. 875 - 896 (2007/10/03)

A variety of authentic standards of linear, branched and cyclic oligomers of glycerol, with well-defined structures and degrees of polymerisation from 2 to 5, have been efficiently synthesised. Linear oligomers were obtained by means of a convergent approach based on regioselective opening of bis(epoxides) with solketal; branched compounds were synthesised using oxidative cleavage of the corresponding anhydrohexitols as the key step. A 6-exo-trig halocyclisation reaction involving heteroatom-tethered unsaturated alcohols permitted an efficient synthesis of the precursors of selected cyclic dimers; larger cyclic oligomers were prepared by two one-pot Williamson reactions using a ditriflate derived from diglycerol. All these methodologies permitted further scaling up.

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