204188-83-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 204188-83-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,1,8 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 204188-83:
(8*2)+(7*0)+(6*4)+(5*1)+(4*8)+(3*8)+(2*8)+(1*3)=120
120 % 10 = 0
So 204188-83-0 is a valid CAS Registry Number.