I found a recipe for a different strawberry cake that I would like to try.  It calls for strawberry extract (in addition to strawberry puree) and I've never used that before.  

Does anyone have any recommendations as to a good brand of strawberry extract?  From my cursory research, it seems like there is a wide variety of brands both imitation and "natural" (whatever that means.)  I thought I also read somewhere that depending on the brand, strawberry extract can emit a chemical/bitter taste, which of course I would like to avoid.  While the imitation extracts seem to be cheapest, if the quality isn't great then that's not a good option.  

I would appreciate any input anyone might have on this.  Thanks!

I highly recommend the strawberry extract from Olivenation.com It's not chemical or bitter at all.   I purchase all of my extracts and flavorings from them and I think they're superior to others.   They ship quickly, too.

You can find some useful coupon codes here:  http://www.retailmenot.com/view/olivenation.com

Thanks so much for the suggestion and for the coupon code link!  I will check Olivenation.com out. 

I used this company http://shop.lorannoils.com/baking. However I have only ever added it to icing and not to cakes, so I'm not sure how the quantities play out.

i use strawberry jello and fresh strawberries in mine

i mean the jello powder into the mixture 

Oh I am not a huge fan of extracts but especially with berries I find they all taste very artificial. Can you not use real strawberries? But that wad not your question anyway so...just my opinion.