56807-77-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56807-77-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,8,0 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 56807-77:
(7*5)+(6*6)+(5*8)+(4*0)+(3*7)+(2*7)+(1*7)=153
153 % 10 = 3
So 56807-77-3 is a valid CAS Registry Number.