1203669-25-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1203669-25-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,3,6,6 and 9 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1203669-25:
(9*1)+(8*2)+(7*0)+(6*3)+(5*6)+(4*6)+(3*9)+(2*2)+(1*5)=133
133 % 10 = 3
So 1203669-25-3 is a valid CAS Registry Number.
1203669-25-3Relevant articles and documents
Palladium-catalyzed tandem amination reaction for the synthesis of 4-quinolones
Zhao, Tlankun,Xu, Bin
, p. 212 - 215 (2010)
(Figure presented) An efficient palladium-catalyzed tandem amlnatlon approach was developed In one step to afford functlonallzed 4-qulnolones In good to excellent ylelds from easlly accessible o-haloaryl acetylenlc ketones and primary amines.