909904-83-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 909904-83-2 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 4 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 909904-83:
(8*9)+(7*0)+(6*9)+(5*9)+(4*0)+(3*4)+(2*8)+(1*3)=202
202 % 10 = 2
So 909904-83-2 is a valid CAS Registry Number.