900520-01-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 900520-01-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,0,5,2 and 0 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 900520-01:
(8*9)+(7*0)+(6*0)+(5*5)+(4*2)+(3*0)+(2*0)+(1*1)=106
106 % 10 = 6
So 900520-01-6 is a valid CAS Registry Number.