81054-77-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81054-77-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,0,5 and 4 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81054-77:
(7*8)+(6*1)+(5*0)+(4*5)+(3*4)+(2*7)+(1*7)=115
115 % 10 = 5
So 81054-77-5 is a valid CAS Registry Number.