Naphthol Red Bright is one of several Napthols. Not recommended for artist's paints due to poor lightfastness. This dips into the bottom category of ASTM III, which is below the dividing line for even for other peoples' standards in paints. Thankfully we did not see it in oil, but we were shocked to see it in no less than 10 commonly available acrylics. However we mention it here as some artists combine oil and acrylic workflows in their paintings.
Another problematic red, we found a caution in Monona Rossol's research about potential serious health issues that could arise when this pigment is metabolized, as a derivative may create a carcinogen, so please consult her writing.
