339311-53-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 339311-53-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,9,3,1 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 339311-53:
(8*3)+(7*3)+(6*9)+(5*3)+(4*1)+(3*1)+(2*5)+(1*3)=134
134 % 10 = 4
So 339311-53-4 is a valid CAS Registry Number.