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304437-60-3

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304437-60-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 304437-60-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,4,4,3 and 7 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 304437-60:
(8*3)+(7*0)+(6*4)+(5*4)+(4*3)+(3*7)+(2*6)+(1*0)=113
113 % 10 = 3
So 304437-60-3 is a valid CAS Registry Number.

304437-60-3Relevant articles and documents

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 (2004)

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

Phase transfer catalyzed synthesis under ultrasonic irradiation and bioactivity of N′-(4, 6-disubstituted-pyrimidin-2-yl)-N-(5-aryl-2-furoyl) thiourea derivatives

Ke, Shao-Yong,Wei, Tai-Bao,Xue, Si-Jia,Duan, Li-Ping,Li, Jing-Zhi

, p. 1957 - 1960 (2007/10/03)

Ten new N′-(4, 6-disubstituted-pyrimidin-2-yl)-N-(5-aryl-2-furoyl) thioureas have been synthesized using PEG-400 as solid-liquid phase transfer catalyst under ultrasonic irradiation. Their structures were exactly confirmed by IR, 1H NMR and ele

A novel route to acyl ureas: Syntheses of N-[5-(2-chlorophenyl)-2- furoyl]-N'-arylthioureas and ureas

Li, Zheng,Wang, Xicun,Da, Yuxia,Chen, Jichou

, p. 2635 - 2645 (2007/10/03)

A novel route to acyl ureas is described. Reaction of 5-(2- chlorophenyl)-2-furoyl chloride with ammonium thiocyanate first, then arylamine under phase transfer catalysis gives N-[5-(2-chlorophenyl)-2- furoyl]-N'-arylthioureas (1a-o). Compounds 1a-o on ox

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