51857-99-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51857-99-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,8,5 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 51857-99:
(7*5)+(6*1)+(5*8)+(4*5)+(3*7)+(2*9)+(1*9)=149
149 % 10 = 9
So 51857-99-9 is a valid CAS Registry Number.