254429-29-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 254429-29-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,4,4,2 and 9 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 254429-29:
(8*2)+(7*5)+(6*4)+(5*4)+(4*2)+(3*9)+(2*2)+(1*9)=143
143 % 10 = 3
So 254429-29-3 is a valid CAS Registry Number.