40835-42-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40835-42-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,8,3 and 5 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 40835-42:
(7*4)+(6*0)+(5*8)+(4*3)+(3*5)+(2*4)+(1*2)=105
105 % 10 = 5
So 40835-42-5 is a valid CAS Registry Number.