1240490-78-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1240490-78-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,0,4,9 and 0 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1240490-78:
(9*1)+(8*2)+(7*4)+(6*0)+(5*4)+(4*9)+(3*0)+(2*7)+(1*8)=131
131 % 10 = 1
So 1240490-78-1 is a valid CAS Registry Number.