23002-83-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23002-83-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,0,0 and 2 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 23002-83:
(7*2)+(6*3)+(5*0)+(4*0)+(3*2)+(2*8)+(1*3)=57
57 % 10 = 7
So 23002-83-7 is a valid CAS Registry Number.