177747-24-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 177747-24-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,7,4 and 7 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 177747-24:
(8*1)+(7*7)+(6*7)+(5*7)+(4*4)+(3*7)+(2*2)+(1*4)=179
179 % 10 = 9
So 177747-24-9 is a valid CAS Registry Number.