No product code - or anything else written - on the lid of this jar of mine.
Mine either. There's a Tab 12B on the inside but nothing else.
If you still have not figured out where the code is, then you probably do not have the stuff in question, or the lids got switched, which happens all to frequently with kids.
The brand is Great Value(Walmart blue label) or Peter Pan. The product codes are all on the top of the lids, and are long but the first four digits are 2111. This indicates the location of MFGR.
If it is not there, and the lids did not get switched, I doubt you have the stuff.