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 when used as intended. See [Health and Safety ](https://www.dickblick.com/learning-resources/product-info/health-safety/ "Learning-resources/product-info/health-safety")for further information.
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 when used as intended. See [Health and Safety ](https://www.dickblick.com/learning-resources/product-info/health-safety/ "Learning-resources/product-info/health-safety")for further information.
Due to differences in users’ monitors, the colors presented are an approximation of the true color.
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PY139-Isoindolinone Yellow
PO60-Benzimidazolone Orange
PY139-Isoindolinone Yellow
organic, azomethine
C16H19N5O6
Isoindolinone Yellow is a new-generation organic pigment that has a very high tinting strength and average drying time.
Isoindolinone Yellow has excellent lightfastness.
Isoindolinone Yellow is not considered toxic.
The first isoindolinone pigments were patented in 1946, and commercial production of pigments in this group began in the 1960s. Several isoindolinone yellow pigments are available.
PO60-Benzimidazolone Orange
organic, monoazo
C17H13ClN6O5
Benzimidazolone Orange is a yellowish orange pigment that can lose its intensity and become dull in tints. The yellowish orange varieties are transparent. It has an average drying time.
Benzimidazolone Orange has excellent lightfastness and outstanding heat and solvent stability for a monoazo pigment.
Benzimidazolone Orange is not considered toxic.
The benzimidazolone group of pigments was developed and patented in 1960 by Hoechst A.G., a German chemical manufacturer that was a forerunner of the pharmaceutical company Aventis. Use of benzimidazolone pigments in the auto industry, especially Benzimidazolone Orange, became common in the 1980s because they were common replacements for lead chromate pigments, which were phased out during this period.
UPC Code: 094376550375
ASIN #: B005WJWATI