81027-58-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81027-58-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,0,2 and 7 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81027-58:
(7*8)+(6*1)+(5*0)+(4*2)+(3*7)+(2*5)+(1*8)=109
109 % 10 = 9
So 81027-58-9 is a valid CAS Registry Number.