81447-50-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81447-50-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,4 and 7 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81447-50:
(7*8)+(6*1)+(5*4)+(4*4)+(3*7)+(2*5)+(1*0)=129
129 % 10 = 9
So 81447-50-9 is a valid CAS Registry Number.