857993-24-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857993-24-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,9,9 and 3 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 857993-24:
(8*8)+(7*5)+(6*7)+(5*9)+(4*9)+(3*3)+(2*2)+(1*4)=239
239 % 10 = 9
So 857993-24-9 is a valid CAS Registry Number.