30122-21-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 30122-21-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,1,2 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 30122-21:
(7*3)+(6*0)+(5*1)+(4*2)+(3*2)+(2*2)+(1*1)=45
45 % 10 = 5
So 30122-21-5 is a valid CAS Registry Number.