663934-10-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 663934-10-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,3,9,3 and 4 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 663934-10:
(8*6)+(7*6)+(6*3)+(5*9)+(4*3)+(3*4)+(2*1)+(1*0)=179
179 % 10 = 9
So 663934-10-9 is a valid CAS Registry Number.