5138-09-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5138-09-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,1,3 and 8 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 5138-09:
(6*5)+(5*1)+(4*3)+(3*8)+(2*0)+(1*9)=80
80 % 10 = 0
So 5138-09-0 is a valid CAS Registry Number.