443685-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 443685-81-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,3,6,8 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 443685-81:
(8*4)+(7*4)+(6*3)+(5*6)+(4*8)+(3*5)+(2*8)+(1*1)=172
172 % 10 = 2
So 443685-81-2 is a valid CAS Registry Number.