3398-70-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3398-70-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,3,9 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 3398-70:
(6*3)+(5*3)+(4*9)+(3*8)+(2*7)+(1*0)=107
107 % 10 = 7
So 3398-70-7 is a valid CAS Registry Number.