Date Code on Home Depot HDX Chlorinating Liquid

[Schnozz]

Howdy and Help: Date code on the Home Depot HDX 10% Liquid Chlorine reads like this:

160131413C

I purchased this May 3, 2016.

Could this code possibly mean the chlorine was produced the 13th day of 2016? Or have I missed something?

I'm having a difficult time managing my chlorine levels for a slam using the pool math calculator and what's supposed to be 10% liquid chlorine..

thanks guys....

 

[pabeader]

That's how I read it. Not very fresh and since they keep it outside it's probably even less.