161742-25-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161742-25-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,7,4 and 2 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 161742-25:
(8*1)+(7*6)+(6*1)+(5*7)+(4*4)+(3*2)+(2*2)+(1*5)=122
122 % 10 = 2
So 161742-25-2 is a valid CAS Registry Number.