30913-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 30913-20-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,9,1 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 30913-20:
(7*3)+(6*0)+(5*9)+(4*1)+(3*3)+(2*2)+(1*0)=83
83 % 10 = 3
So 30913-20-3 is a valid CAS Registry Number.