179120-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 179120-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,9,1,2 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 179120-91:
(8*1)+(7*7)+(6*9)+(5*1)+(4*2)+(3*0)+(2*9)+(1*1)=143
143 % 10 = 3
So 179120-91-3 is a valid CAS Registry Number.