81550-30-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81550-30-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,5 and 0 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81550-30:
(7*8)+(6*1)+(5*5)+(4*5)+(3*0)+(2*3)+(1*0)=113
113 % 10 = 3
So 81550-30-3 is a valid CAS Registry Number.