171258-70-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171258-70-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,2,5 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 171258-70:
(8*1)+(7*7)+(6*1)+(5*2)+(4*5)+(3*8)+(2*7)+(1*0)=131
131 % 10 = 1
So 171258-70-1 is a valid CAS Registry Number.