384-39-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 384-39-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,8 and 4 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 384-39:
(5*3)+(4*8)+(3*4)+(2*3)+(1*9)=74
74 % 10 = 4
So 384-39-4 is a valid CAS Registry Number.