51138-85-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51138-85-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,1,3 and 8 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 51138-85:
(7*5)+(6*1)+(5*1)+(4*3)+(3*8)+(2*8)+(1*5)=103
103 % 10 = 3
So 51138-85-3 is a valid CAS Registry Number.