103988-09-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103988-09-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,9,8 and 8 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 103988-09:
(8*1)+(7*0)+(6*3)+(5*9)+(4*8)+(3*8)+(2*0)+(1*9)=136
136 % 10 = 6
So 103988-09-6 is a valid CAS Registry Number.