1240619-81-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1240619-81-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,0,6,1 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1240619-81:
(9*1)+(8*2)+(7*4)+(6*0)+(5*6)+(4*1)+(3*9)+(2*8)+(1*1)=131
131 % 10 = 1
So 1240619-81-1 is a valid CAS Registry Number.