18339-47-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18339-47-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,3,3 and 9 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 18339-47:
(7*1)+(6*8)+(5*3)+(4*3)+(3*9)+(2*4)+(1*7)=124
124 % 10 = 4
So 18339-47-4 is a valid CAS Registry Number.