577773-56-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 577773-56-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,7,7,7,7 and 3 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 577773-56:
(8*5)+(7*7)+(6*7)+(5*7)+(4*7)+(3*3)+(2*5)+(1*6)=219
219 % 10 = 9
So 577773-56-9 is a valid CAS Registry Number.