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140160-21-0

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140160-21-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140160-21-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,1,6 and 0 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 140160-21:
(8*1)+(7*4)+(6*0)+(5*1)+(4*6)+(3*0)+(2*2)+(1*1)=70
70 % 10 = 0
So 140160-21-0 is a valid CAS Registry Number.

140160-21-0Relevant articles and documents

Synthesis of heterocycles from arylation products of unsaturated compounds: XVIII. 5-Arylfuran-2-carboxylic acids and their application in the synthesis of 1,2,4-thiadiazole, 1,3,4-oxadiazole, and [1,2,4]triazolo[3,4-b][1,3,4] thiadiazole derivatives

Gorak,Obushak,Matiichuk,Lytvyn

experimental part, p. 541 - 550 (2009/08/17)

Arylation of furan-2-carboxylic acid or its methyl ester with arenediazonium chlorides in the presence of copper(II) chloride gave the corresponding 5-arylfuran-2-carboxylic acids or methyl 5-arylfuran-2- carboxylates. 5-Arylfuran-2-carbonyl chlorides rea

Ultrasonic irradiated synthesis of N-(5-aryl-2-furoyl)thiourea derivatives containing substituted pyrimidine ring under phase transfer catalysis

Xue, Si-Jia,Ke, Shao-Yong,Wei, Tai-Bao,Duan, Li-Ping,Guo, Yan-Ling

, p. 1013 - 1018 (2007/10/03)

A series of N-(5-aryl-2-furoyl)thiourea derivatives containing substituted pyrimidine ring were synthesized in good yield using PEG-400 as solid-liquid phase transfer catalyst under ultrasonic irradiation. The structures of all newly synthesized compounds

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