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64080-88-2

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64080-88-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64080-88-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,0,8 and 0 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 64080-88:
(7*6)+(6*4)+(5*0)+(4*8)+(3*0)+(2*8)+(1*8)=122
122 % 10 = 2
So 64080-88-2 is a valid CAS Registry Number.

64080-88-2Relevant articles and documents

Antiparasitic Ovalicin Derivatives from Pseudallescheria boydii, a Mutualistic Fungus of French Guiana Termites

Elie, Nicolas,Eparvier, Véronique,Grayfer, Tatyana,Grellier, Philippe,Hebra, Téo,Leman-Loubière, Charlotte,Sorres, Jonathan,Stien, Didier,Touboul, David

, (2022/02/19)

Social insects are in mutualism with microorganisms, contributing to their resistance against infectious diseases. The fungus Pseudallescheria boydii SNB-CN85 isolated from termites produces ovalicin derivatives resulting from the esterification of the less hindered site of the ovalicin epoxide by long-chain fatty acids. Their structures were elucidated using spectroscopic analysis and semisynthesis from ovalicin. For ovalicin, these compounds displayed antiprotozoal activities against Plasmodium falciparum and Trypanosoma brucei, with IC50 values of 19.8 and 1.1 μM, respectively, for the most active compound, i.e., ovalicin linoleate. In parallel, metabolomic profiling of a collection of P. boydii strains associated with termites made it possible to highlight this class of compounds together with tyroscherin derivatives in all strains. Finally, the complete genome of P. boydii strains was obtained by sequencing, and the cluster of potential ovalicin and ovalicin biosynthesis genes was annotated. Through these metabolomic and genomic analyses, a new ovalicin derivative named boyden C, in which the 6-membered ring of ovalicin was opened by oxidative cleavage, was isolated and structurally characterized.

Alteration of Chain Length Selectivity of Candida antarctica Lipase A by Semi-Rational Design for the Enrichment of Erucic and Gondoic Fatty Acids

Zorn, Katja,Oroz-Guinea, Isabel,Brundiek, Henrike,D?rr, Mark,Bornscheuer, Uwe T.

, p. 4115 - 4131 (2018/10/02)

Biotechnological strategies using renewable materials as starting substrates are a promising alternative to traditional oleochemical processes for the isolation of different fatty acids. Among them, long chain mono-unsaturated fatty acids are especially interesting in industrial lipid modification, since they are precursors of several economically relevant products, including detergents, plastics and lubricants. Therefore, the aim of this study was to develop an enzymatic method in order to increase the percentage of long chain mono-unsaturated fatty acids from Camelina and Crambe oil ethyl ester derivatives, by using selective lipases. Specifically, the focus was on the enrichment of gondoic (C20:1 cisΔ11) and erucic acid (C22:1 cisΔ13) from Camelina and Crambe oil derivatives, respectively. The pursuit of this goal entailed several steps, including: (i) the choice of a suitable lipase scaffold to serve as a protein engineering template (Candida antarctica lipase A); (ii) the identification of potential amino acid targets to disrupt the binding tunnel at the adequate location; (iii) the design, creation and high-throughput screening of lipase mutant libraries; (iv) the study of the selectivity towards different chain length p-nitrophenyl fatty acid esters of the best hits found, as well as the analysis of the contribution of each amino acid change and the outcome of combining several of the aforementioned residue alterations and, finally, (v) the selection and application of the most promising candidates for the fatty acid enrichment biocatalysis. As a result, enrichment of C22:1 from Crambe ethyl esters was achieved either, in the free fatty acid fraction (wt, 78%) or in the esterified fraction (variants V1, 77%; V9, 78% and V19, 74%). Concerning the enrichment of C20:1 when Camelina oil ethyl esters were used as substrate, the best variant was the single mutant V290W, which doubled its content in the esterified fraction from approximately 15% to 34%. A moderately lower increase was achieved by V9 and its two derived triple mutant variants V19 and V20 (27%). (Figure presented.).

A fully enzymatic esterification/transesterification sequence for the preparation of symmetrical and unsymmetrical trehalose diacyl conjugates

Prabhakar, Sunchu,Vivès, Thomas,Ferrières, Vincent,Benvegnu, Thierry,Legentil, Laurent,Lemiègre, Lo?c

supporting information, p. 987 - 995 (2017/08/14)

Monoacyl and diacyl trehalose were synthesized in two steps from trehalose and carboxylic acids. The carboxylic acids were converted first into the corresponding 2,2,2-trifluoroethyl esters through a biocatalyzed esterification. The acyl donor was then transferred to the disaccharide through biocatalyzed transesterification. Thanks to microwave reaction conditions the transesterification proceeded selectively to the monoacyl trehalose or to the diacyl counterparts depending on the sole amount of the acyl donor. These reaction conditions were also applied for the preparation of unsymmetrical diacyl trehalose in a fully enzymatic sequence.

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