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64896-32-8

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64896-32-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64896-32-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,8,9 and 6 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 64896-32:
(7*6)+(6*4)+(5*8)+(4*9)+(3*6)+(2*3)+(1*2)=168
168 % 10 = 8
So 64896-32-8 is a valid CAS Registry Number.

64896-32-8Relevant articles and documents

Concise Modular Synthesis of Thalassotalic Acids A-C

Schulz, Joseph M.,Lanovoi, Hunter T.,Ames, Amanda M.,McKegg, Phillip C.,Patrone, James D.

, p. 1045 - 1048 (2019/05/14)

The novel N-acyldehydrotyrosine analogues known as thalassotalic acids A-C were isolated from a marine bacterium by Deering et al. in 2016. These molecules were shown to have tyrosinase inhibition activity and thus are an attractive set of molecules for further study and optimization. To this end, a concise and modular synthesis has been devised and executed to produce thalassotalic acids A-C and two unnatural analogues. This synthesis has confirmed the identity and inhibitory data of thalassotalic acids A-C, more potent synthetic analogues (IC50 = 65 μM), and provides a route for further structure-activity relationship studies to optimize these molecules.

Synthesis of L-threo- and L-erythro-amino acids: novel probes for conformational analysis of peptide side chains

Oba, Makoto,Ueno, Ryuichi,Fukuoka, Mika,Kainosho, Masatsune,Nishiyama, Kozaburo

, p. 1603 - 1610 (2007/10/02)

An efficient and convenient route for the preparation of L-threo- and L-erythro-amino acids 5 as probes for the conformational analysis of peptide side chains by NMR spectroscopy is described.Stereoselective incorporation of deuterium into the α,β-positions of amino acid 5 was accomplished by catalytic deuteration of dehydroamino acid derivatives 1 and 2 followed by a combination of enzymic optical resilution and the racemization at the 2-position.Using these doubly labelled amino acids, it was possible to obtain vicinal coupling constants between carbonyl carbon and prochiral β-protons, J(13C-1Hβ1) and J(13C1-1Hβ2), through 13C NMR spectroscopy alone.We also demonstrate the determination of the fractional populations of rotamers in respect of the Cα-Cβ bond of the amino acids using the measured coupling constants.

THE USE OF ION-EXCHANGE RESINS IN THE PERKIN REACTION FOR THE SYNTHESIS OF AZALACTONES FROM ALDEHYDES OF PLANT ORIGIN

Gaset, A.,Gorrichon, J. P.

, p. 71 - 80 (2007/10/02)

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