81039-69-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81039-69-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,0,3 and 9 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81039-69:
(7*8)+(6*1)+(5*0)+(4*3)+(3*9)+(2*6)+(1*9)=122
122 % 10 = 2
So 81039-69-2 is a valid CAS Registry Number.