89908-44-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89908-44-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,9,0 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 89908-44:
(7*8)+(6*9)+(5*9)+(4*0)+(3*8)+(2*4)+(1*4)=191
191 % 10 = 1
So 89908-44-1 is a valid CAS Registry Number.