18349-93-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18349-93-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,3,4 and 9 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 18349-93:
(7*1)+(6*8)+(5*3)+(4*4)+(3*9)+(2*9)+(1*3)=134
134 % 10 = 4
So 18349-93-4 is a valid CAS Registry Number.