1228150-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1228150-49-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,8,1,5 and 0 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1228150-49:
(9*1)+(8*2)+(7*2)+(6*8)+(5*1)+(4*5)+(3*0)+(2*4)+(1*9)=129
129 % 10 = 9
So 1228150-49-9 is a valid CAS Registry Number.
1228150-49-9Relevant academic research and scientific papers
Retro-Claisen condensation versus pyrrole formation in reactions of amines and 1,3-diketones
Deb, Indubhusan,Seidel, Daniel
experimental part, p. 2945 - 2947 (2010/06/21)
Cyclic amines and 1,3-diketones readily react under microwave irradiation to form ring-fused pyrroles in a single operation. A competing retro-Claisen pathway is efficiently suppressed by employing p-toluenesulfonic acid as an additive.
