308243-40-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 308243-40-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,8,2,4 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 308243-40:
(8*3)+(7*0)+(6*8)+(5*2)+(4*4)+(3*3)+(2*4)+(1*0)=115
115 % 10 = 5
So 308243-40-5 is a valid CAS Registry Number.