There's little to no research done on Phenethyl Propionate and bees collecting pollen, though it is used to kill carpenter bees through direct contact spraying...so, well...

It's used in a lot of beetle bait/traps...it's recently become popular with the organic bed bug and mosquito control industry.

It's rather safe for humans/animals aside from skin/eye irritation.

Anyone that tells you that a poison meant to kill one insect will not kill other insects probably does not know what they are talking about. I would think that the dirth of information about this product would be a red flag in itself.

Anyone that tells you that a poison meant to kill one insect will not kill other insects probably does not know what they are talking about

When phrased in that very vague and generalized manner that could very well be true. However, companies that focus on low-toxicity pesticides or natural/organic/biological (i.e. "minimum risk") pesticides generally have a pretty good idea how their product works and on what it works. And in most cases, a targeted insecticide has minimal, if any, impact on non-targeted species. To state otherwise is like saying any pesticide works equally well on any type of pest - just doesn't work that way!!

As things go, plant essential oils (and that's what 2-phenethyl propionate is, a derivative of peanut oil) ARE pretty low key. But they have varying modes of action and that would determine how toxic or not they might be with other, non-target insects like most pollinators. Since this is still a very new arm of pesticidal science, there has not be enough literature generated yet to confirm these things. And as these are considered minimum risk pesticides they require no review or evaluation by the EPA "because their ingredients, both active and inert, are demonstrably safe for the intended use". If I were you and wanted to pursue this further, I'd go directly to the company:

Natural Repellents, LLC
P.O. Box 3636
Newtown, CT 06470
P: 203-948-7902
F: 203-426-4783
jvollmer1968@msn.com

The company that produces a product to sell to you is not going to tell you whether it is really something you want, need, or even if exposure might not be the best thing for you or the beneficial insects in your garden. I have yet to see on the label of Carbaryl that it is toxic to bees and many other beneficial insects.
While an organic grower may occasionally need an assist from a chemical, and Phenethyl Propionate is a chemical, making the soil the plants grow in into a good healthy soil that will grow strong and healthy plants will do more to limit insect pest attacks then any pesticide.

This and peppermint oil (combined) is a very effective wasp killer. Since wasps do some pollinating, I would have to say that it's not pollinator safe.

I sprayed some on a wasp and it struggled for less than a minute and died. But it requires direct contact.