900019-04-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 900019-04-7 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, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 900019-04:
(8*9)+(7*0)+(6*0)+(5*0)+(4*1)+(3*9)+(2*0)+(1*4)=107
107 % 10 = 7
So 900019-04-7 is a valid CAS Registry Number.