663164-67-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 663164-67-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,3,1,6 and 4 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 663164-67:
(8*6)+(7*6)+(6*3)+(5*1)+(4*6)+(3*4)+(2*6)+(1*7)=168
168 % 10 = 8
So 663164-67-8 is a valid CAS Registry Number.