42563-99-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42563-99-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,5,6 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 42563-99:
(7*4)+(6*2)+(5*5)+(4*6)+(3*3)+(2*9)+(1*9)=125
125 % 10 = 5
So 42563-99-5 is a valid CAS Registry Number.