1403660-68-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1403660-68-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,3,6,6 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1403660-68:
(9*1)+(8*4)+(7*0)+(6*3)+(5*6)+(4*6)+(3*0)+(2*6)+(1*8)=133
133 % 10 = 3
So 1403660-68-3 is a valid CAS Registry Number.