55804-56-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55804-56-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,8,0 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 55804-56:
(7*5)+(6*5)+(5*8)+(4*0)+(3*4)+(2*5)+(1*6)=133
133 % 10 = 3
So 55804-56-3 is a valid CAS Registry Number.