40716-67-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40716-67-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,7,1 and 6 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 40716-67:
(7*4)+(6*0)+(5*7)+(4*1)+(3*6)+(2*6)+(1*7)=104
104 % 10 = 4
So 40716-67-4 is a valid CAS Registry Number.