204251-25-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 204251-25-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,2,5 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 204251-25:
(8*2)+(7*0)+(6*4)+(5*2)+(4*5)+(3*1)+(2*2)+(1*5)=82
82 % 10 = 2
So 204251-25-2 is a valid CAS Registry Number.