10320-23-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 10320-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,3,2 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 10320-23:
(7*1)+(6*0)+(5*3)+(4*2)+(3*0)+(2*2)+(1*3)=37
37 % 10 = 7
So 10320-23-7 is a valid CAS Registry Number.