253801-42-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 253801-42-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,8,0 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 253801-42:
(8*2)+(7*5)+(6*3)+(5*8)+(4*0)+(3*1)+(2*4)+(1*2)=122
122 % 10 = 2
So 253801-42-2 is a valid CAS Registry Number.