1187472-30-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1187472-30-5 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, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1187472-30:
(9*1)+(8*1)+(7*8)+(6*7)+(5*4)+(4*7)+(3*2)+(2*3)+(1*0)=175
175 % 10 = 5
So 1187472-30-5 is a valid CAS Registry Number.
1187472-30-5Relevant articles and documents
Copper-free Sonogashira reactions of 4-hydroxycoumarins with alkynes
Luo, Yong,Wu, Jie
, p. 6810 - 6814 (2009)
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.