Winsor & Newton Artists' Oil Color - Ruby Madder Alizarin, 37 ml tube

Item #:00461-3773
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Winsor & Newton Artists' Oil Color - Ruby Madder Alizarin, 37 ml tube and swatch

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AP Non-Toxic

Products bearing the AP seal of the Art & Creative Materials Institute, Inc. (ACMI) are certified non-toxic. A product can be certified non-toxic only if it contains no materials in sufficient quantities to be toxic or injurious to humans, or to cause acute or chronic health problems.

Product Details

Artists' Oil
Ruby Madder Alizarin
37 ml (1.25 oz)


Pigment Information

This color contains the following pigments:

PR187-Naphthol Red 187

Pigment Name

PR187-Naphthol Red 187

Pigment Type

organic, monoazo

Chemical Formula



Pigment Red PR187 is a transparent red with a bluish tone, part of the Naphthol AS family of red pigments.


Pigment Red PR187 has excellent lightfastness and weather fastness in most applications.


Naphthol Reds are not considered toxic. They may cause eye, skin, or respiratory irritation. Contact with dry pigment should be avoided.


Pigment Red PR187 is one of the most widely used synthetic red pigments. It has been used to color latex, plastics, paints, resins, and printing inks. Because it is somewhat transparent, it has sometimes been used in metallic automotive finishes.

Safety Data Sheet

UPC Code: 884955082775