6381-03-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6381-03-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,3,8 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 6381-03:
(6*6)+(5*3)+(4*8)+(3*1)+(2*0)+(1*3)=89
89 % 10 = 9
So 6381-03-9 is a valid CAS Registry Number.