33803-39-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33803-39-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,8,0 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 33803-39:
(7*3)+(6*3)+(5*8)+(4*0)+(3*3)+(2*3)+(1*9)=103
103 % 10 = 3
So 33803-39-3 is a valid CAS Registry Number.