1187472-29-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1187472-29-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,7,4,7 and 2 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1187472-29:
(9*1)+(8*1)+(7*8)+(6*7)+(5*4)+(4*7)+(3*2)+(2*2)+(1*9)=182
182 % 10 = 2
So 1187472-29-2 is a valid CAS Registry Number.
1187472-29-2Relevant articles and documents
Copper-free Sonogashira reactions of 4-hydroxycoumarins with alkynes
Luo, Yong,Wu, Jie
experimental part, p. 6810 - 6814 (2009/12/06)
The palladium-catalyzed direct coupling reactions of 4-hydroxycoumarins with various alkynes under copper-free conditions are described. This transformation is highly effective under mild conditions and the desired products are obtained in good yields.