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37664-32-7

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37664-32-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 37664-32-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,7,6,6 and 4 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 37664-32:
(7*3)+(6*7)+(5*6)+(4*6)+(3*4)+(2*3)+(1*2)=137
137 % 10 = 7
So 37664-32-7 is a valid CAS Registry Number.

37664-32-7Relevant articles and documents

Cu-catalyzed direct C-H bond functionalization: A regioselective protocol to 5-aryl thiazolo[3,2-b]-1,2,4-triazoles

Xie, Zengyang,Zhu, Xiaojun,Guan, Yangfan,Zhu, Dunru,Hu, Hongwen,Lin, Chen,Pan, Yi,Jiang, Juli,Wang, Leyong

supporting information, p. 1390 - 1398 (2013/05/08)

An efficient, regioselective C-5 arylation of thiazolo[3,2-b]-1,2,4- triazoles catalyzed by a simple copper catalyst was developed. This arylation proceeded smoothly and tolerated a variety of functional groups (44 examples). A wide range of functionalized thiazolo[3,2-b]-1,2,4-triazole derivatives were obtained in high yields (up to 99% yield). Possible catalytic cycles of the arylation were also discussed.

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