89281-42-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89281-42-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,2,8 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 89281-42:
(7*8)+(6*9)+(5*2)+(4*8)+(3*1)+(2*4)+(1*2)=165
165 % 10 = 5
So 89281-42-5 is a valid CAS Registry Number.