667941-09-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 667941-09-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,7,9,4 and 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 667941-09:
(8*6)+(7*6)+(6*7)+(5*9)+(4*4)+(3*1)+(2*0)+(1*9)=205
205 % 10 = 5
So 667941-09-5 is a valid CAS Registry Number.