51904-30-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51904-30-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,9,0 and 4 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 51904-30:
(7*5)+(6*1)+(5*9)+(4*0)+(3*4)+(2*3)+(1*0)=104
104 % 10 = 4
So 51904-30-4 is a valid CAS Registry Number.