6142-68-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6142-68-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,1,4 and 2 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 6142-68:
(6*6)+(5*1)+(4*4)+(3*2)+(2*6)+(1*8)=83
83 % 10 = 3
So 6142-68-3 is a valid CAS Registry Number.