170098-90-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 170098-90-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,0,0,9 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 170098-90:
(8*1)+(7*7)+(6*0)+(5*0)+(4*9)+(3*8)+(2*9)+(1*0)=135
135 % 10 = 5
So 170098-90-5 is a valid CAS Registry Number.