131423-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131423-49-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,4,2 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 131423-49:
(8*1)+(7*3)+(6*1)+(5*4)+(4*2)+(3*3)+(2*4)+(1*9)=89
89 % 10 = 9
So 131423-49-9 is a valid CAS Registry Number.
131423-49-9Relevant articles and documents
Reactions of 2'-NHR-Chalcone Dibromides with Ammonia
Tokes, Adrienne L.,Litkei, Gyoergy,Janzso, Geza
, p. 1905 - 1913 (2007/10/02)
Synthesis of 2'-NHR-chalcone dibromides and their reaction with methanolic ammonia are discussed.Depending on the character of the R group, ethylenimine, -bromochalcone, 2,3-dimethoxypropan-1-one and 1,2,3,4-tetrahydro-4-quinolone derivatives were obtaine
