19933-30-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19933-30-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,3 and 3 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 19933-30:
(7*1)+(6*9)+(5*9)+(4*3)+(3*3)+(2*3)+(1*0)=133
133 % 10 = 3
So 19933-30-3 is a valid CAS Registry Number.