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55718-52-0

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55718-52-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55718-52-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,7,1 and 8 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 55718-52:
(7*5)+(6*5)+(5*7)+(4*1)+(3*8)+(2*5)+(1*2)=140
140 % 10 = 0
So 55718-52-0 is a valid CAS Registry Number.

55718-52-0Relevant articles and documents

An efficient synthesis of 4,5-diaryl-3,4-dihydropyrimidin-2(1: H)-one via a cesium carbonate-promoted direct condensation of 1-aryl-2-propanone with 1,1'-(arylmethylene)diurea

Deng, Wei,Guo, Yi-Cong,Rao, Weidong,Shen, Zhi-Liang,Song, Xuan-Di,Xu, Haiyan

, p. 30062 - 30068 (2020/10/26)

An efficient method for the synthesis of 4,5-diaryl-3,4-dihydropyrimidin-2(1H)-one by using 1,1'-(arylmethylene)diurea and 1-aryl-2-propanone as substrates was developed. The reactions proceeded efficiently in the presence of Cs2CO3 to give the desired pr

Nanosilica-bonded N-(propylsulfonyl) piperazine-N-sulfamic acid as recyclable catalyst for synthesis of 1,1′-(arylmethylene) diureas and 1,3,5-triazinane-2,4-dithiones

Rezaee, Parizad,Davarpanah, Jamal

, p. 6815 - 6830 (2016/08/25)

Nanosilica-bonded N-(propylsulfonyl) piperazine-N-sulfamic acid was easily prepared by functionalizing silica nanoparticles and characterized by thermogravimetric analysis, scanning electron microscopy, infrared (IR) spectroscopy, elemental analyses, and

Synthesis and antitumor activity of some 2, 3-disubstituted quinazolin-4(3H)-ones and 4, 6- disubstituted- 1, 2, 3, 4-tetrahydroquinazolin- 2H-ones

Abdel Gawad, Nagwa M.,Georgey, Hanan H.,Youssef, Riham M.,El-Sayed, Nehad A.

experimental part, p. 6058 - 6067 (2011/01/13)

The synthesis of some new 3-substituted quinazolin-4(3H)-ones and 3,4-dihydro-quinazolin-2(1H)-one derivatives and their biological evaluation as antitumor agents using the National Cancer Institute (NCI), disease oriented antitumor screening protocol are

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