682807-40-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 682807-40-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,2,8,0 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 682807-40:
(8*6)+(7*8)+(6*2)+(5*8)+(4*0)+(3*7)+(2*4)+(1*0)=185
185 % 10 = 5
So 682807-40-5 is a valid CAS Registry Number.