554428-51-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 554428-51-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,4,4,2 and 8 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 554428-51:
(8*5)+(7*5)+(6*4)+(5*4)+(4*2)+(3*8)+(2*5)+(1*1)=162
162 % 10 = 2
So 554428-51-2 is a valid CAS Registry Number.