1016682-25-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1016682-25-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,6,6,8 and 2 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1016682-25:
(9*1)+(8*0)+(7*1)+(6*6)+(5*6)+(4*8)+(3*2)+(2*2)+(1*5)=129
129 % 10 = 9
So 1016682-25-9 is a valid CAS Registry Number.