171012-56-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171012-56-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,0,1 and 2 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 171012-56:
(8*1)+(7*7)+(6*1)+(5*0)+(4*1)+(3*2)+(2*5)+(1*6)=89
89 % 10 = 9
So 171012-56-9 is a valid CAS Registry Number.