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501008-39-5

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501008-39-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 501008-39-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,1,0,0 and 8 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 501008-39:
(8*5)+(7*0)+(6*1)+(5*0)+(4*0)+(3*8)+(2*3)+(1*9)=85
85 % 10 = 5
So 501008-39-5 is a valid CAS Registry Number.

501008-39-5Relevant articles and documents

A novel synthesis of 1-aryl-3-piperidone derivatives

Zhang, Yinan,Silverman, Richard B.

, p. 573 - 575 (2013)

A novel method to construct the 1-aryl-3-piperidone scaffold is described here. Starting from 3,5-dichloroaniline, a seven-step synthesis, without the use of protecting groups, generates the desired 3-piperidone ring in an overall yield of 30% through a key Morita-Baylis-Hillman reaction and ring-closing metathesis, providing easy access to diverse and useful heterocycles.

Arylamino containing hydroxamic acids as potent urease inhibitors for the treatment of Helicobacter pylori infection

Liu, Qi,Shi, Wei-Kang,Ren, Shen-Zhen,Ni, Wei-Wei,Li, Wei-Yi,Chen, Hui-Min,Liu, Pei,Yuan, Jing,He, Xiao-Su,Liu, Jia-Jia,Cao, Peng,Yang, Pu-Zhen,Xiao, Zhu-Ping,Zhu, Hai-Liang

, p. 126 - 136 (2018/07/13)

A novel series of aniline-containing hydroxamic acids were designed, synthesized and evaluated as anti-virulence agents for the treatment of gastritis and gastric ulcer caused by Helicobacter pylori. In vitro enzyme-based screen together with in vivo assays and structure?activity relationship (SAR) studies led to the discovery of three potent urease inhibitors 3-(3,5-dichlorophenylamino)–N-hydroxypropanamide (3a), 3-(2-chlorophenylamino)–N-hydroxypropanamide (3d) and 3-(2,4-dichlorophenylamino)–N-hydroxypropanamide (3n). Compounds 3a, 3d and 3n showed excellent urease inhibition with IC50 values 0.043 ± 0.005, 0.055 ± 0.008 and 0.018 ± 0.002 μM, and significantly depressed gastritis developing at the dose of 32 mg/kg b. i.d with eradication rates of H. pylori reaching 92.3, 84.6 and 100%, respectively. Preliminary safety studies (acute toxicity in mice) disclosed that 3a, 3d and 3n was well-tolerated in KM mice with LD50s of 2982.8, 3349.4 and 3126.9 mg/kg, respectively. Collectively, the data obtained in this study indicate that 3a, 3d and 3n, in particular 3n, could considered as promising candidates for the potential treatment of H. pylori caused gastritis and gastric ulcer, and hence merit further studies.

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