42847-99-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42847-99-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,8,4 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 42847-99:
(7*4)+(6*2)+(5*8)+(4*4)+(3*7)+(2*9)+(1*9)=144
144 % 10 = 4
So 42847-99-4 is a valid CAS Registry Number.