443645-39-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 443645-39-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,3,6,4 and 5 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 443645-39:
(8*4)+(7*4)+(6*3)+(5*6)+(4*4)+(3*5)+(2*3)+(1*9)=154
154 % 10 = 4
So 443645-39-4 is a valid CAS Registry Number.