171562-97-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171562-97-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,5,6 and 2 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 171562-97:
(8*1)+(7*7)+(6*1)+(5*5)+(4*6)+(3*2)+(2*9)+(1*7)=143
143 % 10 = 3
So 171562-97-3 is a valid CAS Registry Number.