909801-51-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 909801-51-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,9,8,0 and 1 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 909801-51:
(8*9)+(7*0)+(6*9)+(5*8)+(4*0)+(3*1)+(2*5)+(1*1)=180
180 % 10 = 0
So 909801-51-0 is a valid CAS Registry Number.