51238-65-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51238-65-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,2,3 and 8 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 51238-65:
(7*5)+(6*1)+(5*2)+(4*3)+(3*8)+(2*6)+(1*5)=104
104 % 10 = 4
So 51238-65-4 is a valid CAS Registry Number.