6512-40-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6512-40-9 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 0 respectively.
Calculate Digit Verification of CAS Registry Number 6512-40:
(6*6)+(5*5)+(4*1)+(3*2)+(2*4)+(1*0)=79
79 % 10 = 9
So 6512-40-9 is a valid CAS Registry Number.