731822-40-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 731822-40-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,3,1,8,2 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 731822-40:
(8*7)+(7*3)+(6*1)+(5*8)+(4*2)+(3*2)+(2*4)+(1*0)=145
145 % 10 = 5
So 731822-40-5 is a valid CAS Registry Number.