443902-54-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 443902-54-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,3,9,0 and 2 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 443902-54:
(8*4)+(7*4)+(6*3)+(5*9)+(4*0)+(3*2)+(2*5)+(1*4)=143
143 % 10 = 3
So 443902-54-3 is a valid CAS Registry Number.