40978-56-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40978-56-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,9,7 and 8 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 40978-56:
(7*4)+(6*0)+(5*9)+(4*7)+(3*8)+(2*5)+(1*6)=141
141 % 10 = 1
So 40978-56-1 is a valid CAS Registry Number.