443889-16-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 443889-16-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,3,8,8 and 9 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 443889-16:
(8*4)+(7*4)+(6*3)+(5*8)+(4*8)+(3*9)+(2*1)+(1*6)=185
185 % 10 = 5
So 443889-16-5 is a valid CAS Registry Number.