1019017-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1019017-20-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,9,0,1 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1019017-20:
(9*1)+(8*0)+(7*1)+(6*9)+(5*0)+(4*1)+(3*7)+(2*2)+(1*0)=99
99 % 10 = 9
So 1019017-20-9 is a valid CAS Registry Number.