3023-70-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3023-70-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,0,2 and 3 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 3023-70:
(6*3)+(5*0)+(4*2)+(3*3)+(2*7)+(1*0)=49
49 % 10 = 9
So 3023-70-9 is a valid CAS Registry Number.