24639-12-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 24639-12-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,4,6,3 and 9 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 24639-12:
(7*2)+(6*4)+(5*6)+(4*3)+(3*9)+(2*1)+(1*2)=111
111 % 10 = 1
So 24639-12-1 is a valid CAS Registry Number.