477808-21-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 477808-21-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,7,8,0 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 477808-21:
(8*4)+(7*7)+(6*7)+(5*8)+(4*0)+(3*8)+(2*2)+(1*1)=192
192 % 10 = 2
So 477808-21-2 is a valid CAS Registry Number.