337984-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 337984-53-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,7,9,8 and 4 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 337984-53:
(8*3)+(7*3)+(6*7)+(5*9)+(4*8)+(3*4)+(2*5)+(1*3)=189
189 % 10 = 9
So 337984-53-9 is a valid CAS Registry Number.