428441-32-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 428441-32-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,8,4,4 and 1 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 428441-32:
(8*4)+(7*2)+(6*8)+(5*4)+(4*4)+(3*1)+(2*3)+(1*2)=141
141 % 10 = 1
So 428441-32-1 is a valid CAS Registry Number.