443291-89-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 443291-89-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,3,2,9 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 443291-89:
(8*4)+(7*4)+(6*3)+(5*2)+(4*9)+(3*1)+(2*8)+(1*9)=152
152 % 10 = 2
So 443291-89-2 is a valid CAS Registry Number.