672308-71-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 672308-71-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,2,3,0 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 672308-71:
(8*6)+(7*7)+(6*2)+(5*3)+(4*0)+(3*8)+(2*7)+(1*1)=163
163 % 10 = 3
So 672308-71-3 is a valid CAS Registry Number.