6440-12-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6440-12-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,4 and 0 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 6440-12:
(6*6)+(5*4)+(4*4)+(3*0)+(2*1)+(1*2)=76
76 % 10 = 6
So 6440-12-6 is a valid CAS Registry Number.