30290-23-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 30290-23-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,2,9 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 30290-23:
(7*3)+(6*0)+(5*2)+(4*9)+(3*0)+(2*2)+(1*3)=74
74 % 10 = 4
So 30290-23-4 is a valid CAS Registry Number.