Paint Library / pigments /red /Naphthol Red AS

Naphthol Red AS

CI Name	PR146	CI stands for "Color Index". It's a short code that easily identifies the pigment. Not all pigments have one. P designates that this pigment may be organic or inorganic, and may be composed of naturally occuring minerals, synthetic materials, or lakes. R is shorthand for Red. 146 is the CI serial number.
Toxicity	Low	The general rule of thumb to follow is to not inhale, ingest, feed to pets or babies, pour on the ground, or leave on skin. All pigments should be assumed to be dangerous, and potentially lethal if mishandled. If the pigment has high or extreme toxicity, it might be better not to use it at all.
Lightfastness	?	Unknown No data available.
Transparency	T	Transparent Transparent

Paints

The following paints likely use this pigment.

Multi-Pigment Watercolors

Crimson Lake Sennelier

PR206, PR146, PR209

Quinacridone Red Cass Art

PR208, PR146

More Information

Information on this website related to pigments has the distict possibility of being incorrect, out of date, or baffling. It is offered for the main purpose of being able to thoughtfully compare paints based on their composition, which also might be incorrect or out of date.

Please do your own independent research about pigments if you are interested in mixing your own paints. Check out the Art is Creation Pigment Database, or handprint.

If you want to help update pigment information, or want to just share something that can be fixed, you can send an email to librarian@paintlibrary.art.