1204811-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1204811-53-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,4,8,1 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1204811-53:
(9*1)+(8*2)+(7*0)+(6*4)+(5*8)+(4*1)+(3*1)+(2*5)+(1*3)=109
109 % 10 = 9
So 1204811-53-9 is a valid CAS Registry Number.