172890-53-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 172890-53-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,8,9 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 172890-53:
(8*1)+(7*7)+(6*2)+(5*8)+(4*9)+(3*0)+(2*5)+(1*3)=158
158 % 10 = 8
So 172890-53-8 is a valid CAS Registry Number.