666177-01-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 666177-01-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,6,1,7 and 7 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 666177-01:
(8*6)+(7*6)+(6*6)+(5*1)+(4*7)+(3*7)+(2*0)+(1*1)=181
181 % 10 = 1
So 666177-01-1 is a valid CAS Registry Number.