900019-81-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 900019-81-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,0,0,1 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 900019-81:
(8*9)+(7*0)+(6*0)+(5*0)+(4*1)+(3*9)+(2*8)+(1*1)=120
120 % 10 = 0
So 900019-81-0 is a valid CAS Registry Number.