491585-24-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 491585-24-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,1,5,8 and 5 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 491585-24:
(8*4)+(7*9)+(6*1)+(5*5)+(4*8)+(3*5)+(2*2)+(1*4)=181
181 % 10 = 1
So 491585-24-1 is a valid CAS Registry Number.