671199-31-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 671199-31-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,1,1,9 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 671199-31:
(8*6)+(7*7)+(6*1)+(5*1)+(4*9)+(3*9)+(2*3)+(1*1)=178
178 % 10 = 8
So 671199-31-8 is a valid CAS Registry Number.