42523-54-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42523-54-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,5,2 and 3 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 42523-54:
(7*4)+(6*2)+(5*5)+(4*2)+(3*3)+(2*5)+(1*4)=96
96 % 10 = 6
So 42523-54-6 is a valid CAS Registry Number.