90801-71-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90801-71-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,8,0 and 1 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 90801-71:
(7*9)+(6*0)+(5*8)+(4*0)+(3*1)+(2*7)+(1*1)=121
121 % 10 = 1
So 90801-71-1 is a valid CAS Registry Number.