577747-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 577747-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,7,7,7,4 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 577747-80:
(8*5)+(7*7)+(6*7)+(5*7)+(4*4)+(3*7)+(2*8)+(1*0)=219
219 % 10 = 9
So 577747-80-9 is a valid CAS Registry Number.