1270943-13-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1270943-13-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,0,9,4 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1270943-13:
(9*1)+(8*2)+(7*7)+(6*0)+(5*9)+(4*4)+(3*3)+(2*1)+(1*3)=149
149 % 10 = 9
So 1270943-13-9 is a valid CAS Registry Number.
1270943-13-9Relevant academic research and scientific papers
Rapid one-pot, four-step synthesis of highly fluorescent 1,3,4,5-tetrasubstituted pyrazoles
Willy, Benjamin,Mueller, Thomas J.J.
, p. 2082 - 2085 (2011/06/24)
1,3,4,5-Tetrasubstituted pyrazoles can be rapidly and efficiently synthesized in a one-pot, four-step sequence consisting of Sonogashira coupling, addition-cyclocondensation, bromination, and Suzuki coupling. The second and the last step are microwave-ass
