31003-07-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31003-07-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,0,0 and 3 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 31003-07:
(7*3)+(6*1)+(5*0)+(4*0)+(3*3)+(2*0)+(1*7)=43
43 % 10 = 3
So 31003-07-3 is a valid CAS Registry Number.