577768-18-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 577768-18-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,7,7,7,6 and 8 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 577768-18:
(8*5)+(7*7)+(6*7)+(5*7)+(4*6)+(3*8)+(2*1)+(1*8)=224
224 % 10 = 4
So 577768-18-4 is a valid CAS Registry Number.