428862-55-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 428862-55-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,8,8,6 and 2 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 428862-55:
(8*4)+(7*2)+(6*8)+(5*8)+(4*6)+(3*2)+(2*5)+(1*5)=179
179 % 10 = 9
So 428862-55-9 is a valid CAS Registry Number.