Perylene Red (distinct from Perylene Maroon). Lightfastness is decent to moderate. Lightfastness may be better in watercolors, however it may fade in tints.
Monona Rossol mentions that this pigment has an anthraquinone-like similarity (potential carcinogen) may cause methemoglobinemia, and be associated with health problems- please see her work for information about powder/dust hazards.
PR178 pigment data from David G. Myers, The Color of Art Pigment Database, Artiscreation.com
Information about PR178 from Bruce MacEvoy, Handprint Guide to Watercolors, General information about this class of pigments from Handprint,
Rossol, Monona. The Artist's Complete Health and Safety Guide. New York, NY : Allworth Press, 2001. The book is rather dated, updated information is available from her website.
Good to Very Good, but one caveat
Very Good, but one of the BWS readings returned a 6 which is lower than we like in an artist paint
Semi-Transparent
Previously thought to be in the category of Low Concern, new research suggests this may be carcinogenic.
Monona Rossol’s writing about pigments and artist safety available on request here notes that this pigment has a similarity to other Anthraquinones which are carcinogenic. While this specific pigment has not been tested, other similar pigments have been listed as "reasonably believed to be carcinogenic." Treat all pigments and paints with studio safety protocols.
anthraquinone perylene
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