40707-31-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40707-31-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,7,0 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 40707-31:
(7*4)+(6*0)+(5*7)+(4*0)+(3*7)+(2*3)+(1*1)=91
91 % 10 = 1
So 40707-31-1 is a valid CAS Registry Number.