667432-17-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 667432-17-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,7,4,3 and 2 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 667432-17:
(8*6)+(7*6)+(6*7)+(5*4)+(4*3)+(3*2)+(2*1)+(1*7)=179
179 % 10 = 9
So 667432-17-9 is a valid CAS Registry Number.