1040716-34-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1040716-34-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,4,0,7,1 and 6 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1040716-34:
(9*1)+(8*0)+(7*4)+(6*0)+(5*7)+(4*1)+(3*6)+(2*3)+(1*4)=104
104 % 10 = 4
So 1040716-34-4 is a valid CAS Registry Number.