909905-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 909905-99-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,9,9,0 and 5 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 909905-99:
(8*9)+(7*0)+(6*9)+(5*9)+(4*0)+(3*5)+(2*9)+(1*9)=213
213 % 10 = 3
So 909905-99-3 is a valid CAS Registry Number.