669713-93-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 669713-93-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,9,7,1 and 3 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 669713-93:
(8*6)+(7*6)+(6*9)+(5*7)+(4*1)+(3*3)+(2*9)+(1*3)=213
213 % 10 = 3
So 669713-93-3 is a valid CAS Registry Number.