101031-18-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 101031-18-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,1,0,3 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 101031-18:
(8*1)+(7*0)+(6*1)+(5*0)+(4*3)+(3*1)+(2*1)+(1*8)=39
39 % 10 = 9
So 101031-18-9 is a valid CAS Registry Number.