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656808-19-4

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656808-19-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 656808-19-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,6,8,0 and 8 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 656808-19:
(8*6)+(7*5)+(6*6)+(5*8)+(4*0)+(3*8)+(2*1)+(1*9)=194
194 % 10 = 4
So 656808-19-4 is a valid CAS Registry Number.

656808-19-4Relevant articles and documents

Carboxamides of Dihydropyridin-2(1H)-ones

Weis, Robert,Presser, Armin,Seebacher, Werner

, p. 1129 - 1136 (2003)

3-Carboxamides and 3-carboxanilides of 6-alkyl and 6-aryldihydropyridin- 2(1H)-ones have been prepared via different reaction pathways. All synthesized amides show hydrogen bonds in their NMR spectra. The 4-hydroxy compounds were obtained as a mixture of tautomers. Their configurations were elucidated by NMR experiments.

Design and structure-activity relationships of potent and selective inhibitors of undecaprenyl pyrophosphate synthase (UPPS): Tetramic, tetronic acids and dihydropyridin-2-ones

Peukert, Stefan,Sun, Yingchuan,Zhang, Rui,Hurley, Brian,Sabio, Mike,Shen, Xiaoyu,Gray, Christen,Dzink-Fox, JoAnn,Tao, Jianshi,Cebula, Regina,Wattanasin, Sompong

, p. 1840 - 1844 (2008/09/19)

Based on a pharmacophore hypothesis substituted tetramic and tetronic acid 3-carboxamides as well as dihydropyridin-2-one-3-carboxamides were investigated as inhibitors of undecaprenyl pyrophosphate synthase (UPPS) for use as novel antimicrobial agents. S

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