643024-73-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 643024-73-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,3,0,2 and 4 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 643024-73:
(8*6)+(7*4)+(6*3)+(5*0)+(4*2)+(3*4)+(2*7)+(1*3)=131
131 % 10 = 1
So 643024-73-1 is a valid CAS Registry Number.