668435-67-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 668435-67-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,8,4,3 and 5 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 668435-67:
(8*6)+(7*6)+(6*8)+(5*4)+(4*3)+(3*5)+(2*6)+(1*7)=204
204 % 10 = 4
So 668435-67-4 is a valid CAS Registry Number.