671200-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 671200-72-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,1,2,0 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 671200-72:
(8*6)+(7*7)+(6*1)+(5*2)+(4*0)+(3*0)+(2*7)+(1*2)=129
129 % 10 = 9
So 671200-72-9 is a valid CAS Registry Number.