1225057-43-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1225057-43-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,5,0,5 and 7 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1225057-43:
(9*1)+(8*2)+(7*2)+(6*5)+(5*0)+(4*5)+(3*7)+(2*4)+(1*3)=121
121 % 10 = 1
So 1225057-43-1 is a valid CAS Registry Number.
1225057-43-1Relevant articles and documents
Synthesis of 2 H-indazoles by the [3 + 2] dipolar cycloaddition of sydnones with arynes
Fang, Yuesi,Wu, Chunrui,Larock, Richard C.,Shi, Feng
, p. 8840 - 8851 (2012/01/02)
A rapid and efficient synthesis of 2H-indazoles has been developed using a [3 + 2] dipolar cycloaddition of sydnones and arynes. A series of 2H-indazoles have been prepared in good to excellent yields using this protocol, and subsequent Pd-catalyzed coupl
