444903-85-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 444903-85-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,4,9,0 and 3 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 444903-85:
(8*4)+(7*4)+(6*4)+(5*9)+(4*0)+(3*3)+(2*8)+(1*5)=159
159 % 10 = 9
So 444903-85-9 is a valid CAS Registry Number.