166742-24-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 166742-24-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,6,7,4 and 2 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 166742-24:
(8*1)+(7*6)+(6*6)+(5*7)+(4*4)+(3*2)+(2*2)+(1*4)=151
151 % 10 = 1
So 166742-24-1 is a valid CAS Registry Number.