81309-60-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81309-60-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,3,0 and 9 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81309-60:
(7*8)+(6*1)+(5*3)+(4*0)+(3*9)+(2*6)+(1*0)=116
116 % 10 = 6
So 81309-60-6 is a valid CAS Registry Number.