42913-56-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42913-56-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,9,1 and 3 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 42913-56:
(7*4)+(6*2)+(5*9)+(4*1)+(3*3)+(2*5)+(1*6)=114
114 % 10 = 4
So 42913-56-4 is a valid CAS Registry Number.