Is it possible to set up barcodes tied to different unit of measures for each item?

For example, we use a co-packer to make BBQ Sauce.  We sell as eaches (e-commerce) or as cases (wholesale), but all product is received in as cases (6 eaches per case).

We want to integrate using barcode scanning, but at receiving we could only scan a case barcode, rather than an each. Our base level item is an each.

Is there a way to do this same thing as sub-items?