443899-45-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 443899-45-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,3,8,9 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 443899-45:
(8*4)+(7*4)+(6*3)+(5*8)+(4*9)+(3*9)+(2*4)+(1*5)=194
194 % 10 = 4
So 443899-45-4 is a valid CAS Registry Number.