40756-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40756-80-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,7,5 and 6 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 40756-80:
(7*4)+(6*0)+(5*7)+(4*5)+(3*6)+(2*8)+(1*0)=117
117 % 10 = 7
So 40756-80-7 is a valid CAS Registry Number.