1415640-68-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1415640-68-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,1,5,6,4 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1415640-68:
(9*1)+(8*4)+(7*1)+(6*5)+(5*6)+(4*4)+(3*0)+(2*6)+(1*8)=144
144 % 10 = 4
So 1415640-68-4 is a valid CAS Registry Number.