320616-55-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 320616-55-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,0,6,1 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 320616-55:
(8*3)+(7*2)+(6*0)+(5*6)+(4*1)+(3*6)+(2*5)+(1*5)=105
105 % 10 = 5
So 320616-55-5 is a valid CAS Registry Number.