402941-31-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 402941-31-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,9,4 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 402941-31:
(8*4)+(7*0)+(6*2)+(5*9)+(4*4)+(3*1)+(2*3)+(1*1)=115
115 % 10 = 5
So 402941-31-5 is a valid CAS Registry Number.