254991-24-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 254991-24-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,4,9,9 and 1 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 254991-24:
(8*2)+(7*5)+(6*4)+(5*9)+(4*9)+(3*1)+(2*2)+(1*4)=167
167 % 10 = 7
So 254991-24-7 is a valid CAS Registry Number.