Coop Egg Carton Stain (help)

Fighting/sorting out an infection, I had a moment of being lackadaisical and didn’t catch that my egg carton (from Coop, the blue ones) that I put on my kitchen countertop had a cracked egg until several hours later. I’ve now been left with this lovely stain. I’ve tried a couple softer cleaning methods and have had no luck. Has this happened to someone else and any suggestions on how to remove it?

Tried: Dish soap, Mild general surface cleaner, sodium bicarbonate + water paste (10min sitting, followed by cut lemon gentle scrub).

I checked a kitchen “manual/introduction” in the apartment, but it doesn’t state what kind of countertop I haves. I rent so I’m assuming it is a common material choice and could very likely some kind of quartz top?

Thanks for any help and tips! Also, as a note, I’m immediately switching to larger cartons with uncolored cardboard. 🙅‍♀️