204577-67-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 204577-67-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,5,7 and 7 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 204577-67:
(8*2)+(7*0)+(6*4)+(5*5)+(4*7)+(3*7)+(2*6)+(1*7)=133
133 % 10 = 3
So 204577-67-3 is a valid CAS Registry Number.