205655-77-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 205655-77-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,6,5 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 205655-77:
(8*2)+(7*0)+(6*5)+(5*6)+(4*5)+(3*5)+(2*7)+(1*7)=132
132 % 10 = 2
So 205655-77-2 is a valid CAS Registry Number.