171816-10-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171816-10-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,8,1 and 6 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 171816-10:
(8*1)+(7*7)+(6*1)+(5*8)+(4*1)+(3*6)+(2*1)+(1*0)=127
127 % 10 = 7
So 171816-10-7 is a valid CAS Registry Number.