50904-15-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 50904-15-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,9,0 and 4 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 50904-15:
(7*5)+(6*0)+(5*9)+(4*0)+(3*4)+(2*1)+(1*5)=99
99 % 10 = 9
So 50904-15-9 is a valid CAS Registry Number.