667911-93-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 667911-93-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,7,9,1 and 1 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 667911-93:
(8*6)+(7*6)+(6*7)+(5*9)+(4*1)+(3*1)+(2*9)+(1*3)=205
205 % 10 = 5
So 667911-93-5 is a valid CAS Registry Number.