554430-87-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 554430-87-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,4,4,3 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 554430-87:
(8*5)+(7*5)+(6*4)+(5*4)+(4*3)+(3*0)+(2*8)+(1*7)=154
154 % 10 = 4
So 554430-87-4 is a valid CAS Registry Number.