1030834-05-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1030834-05-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,3,0,8,3 and 4 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1030834-05:
(9*1)+(8*0)+(7*3)+(6*0)+(5*8)+(4*3)+(3*4)+(2*0)+(1*5)=99
99 % 10 = 9
So 1030834-05-9 is a valid CAS Registry Number.