6512-42-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6512-42-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,1 and 2 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 6512-42:
(6*6)+(5*5)+(4*1)+(3*2)+(2*4)+(1*2)=81
81 % 10 = 1
So 6512-42-1 is a valid CAS Registry Number.