"Cleaning petroleum" from Hardware Store

[Luce]

I have MHRB-powder and want to do an AB-extraction with vinegar, NaOH and naphtha.
Getting the first two substances is easy, but it's difficult with naphtha. Which one is safe?

According to Grok, "Petroleum ether 40–60 °C, ROTIPURAN® p.a., ACS" would be the safest option, but it’s not available to private individuals where I live.
Could I use cheap "cleaning petroleum" from a German hardware store instead? (Label: 6–7 hydrocarbons, iso-alkanes, n-alkenes, cyclo-alkanes, hexane). Not sure if there is something else in it.

 

[61pete]

It should be fine.
For MHRB powder, I use StB, dunno why you're using acid/vinegar first.

Another product that I've successfully used is diesel injector cleaner, it has a red dye that I managed to remove mostly by filtering through silicone cat litter.
It leaves no trace on an evap test and nor does it color my dmt crystals.
Its mostly hexane(80%), heptane and n-pentane