1620172-24-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1620172-24-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,0,1,7 and 2 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1620172-24:
(9*1)+(8*6)+(7*2)+(6*0)+(5*1)+(4*7)+(3*2)+(2*2)+(1*4)=118
118 % 10 = 8
So 1620172-24-8 is a valid CAS Registry Number.