While working on The Whole30 book edits for our UK publisher, I began researching E numbers that would rule a product out on the Whole30. (Boy, your labeling isn't anywhere near as easy to translate with all these codes!) I thought you might find these helpful.
Note, I can't say for certain these are 100% of the E numbers to avoid. These are just the ones I researched with respect to specific off-plan ingredients. Feel free to post your own resources, or to request that I add to this list with other additives you discover in your own research.
Here is a list of E numbers you'd want to avoid on the Whole30, as these codes refer to either carrageenan, sulfites, or MSG: