41957-78-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 41957-78-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,1,9,5 and 7 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 41957-78:
(7*4)+(6*1)+(5*9)+(4*5)+(3*7)+(2*7)+(1*8)=142
142 % 10 = 2
So 41957-78-2 is a valid CAS Registry Number.