671224-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 671224-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,1,2,2 and 4 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 671224-80:
(8*6)+(7*7)+(6*1)+(5*2)+(4*2)+(3*4)+(2*8)+(1*0)=149
149 % 10 = 9
So 671224-80-9 is a valid CAS Registry Number.