Products bearing the CL seal of The Art & Creative Materials Institute (“Caution Label”) contain ingredients that are toxic or hazardous, but can still be safely used in controlled environments if directions on the container or packaging are followed. 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 CL seal of The Art & Creative Materials Institute (“Caution Label”) contain ingredients that are toxic or hazardous, but can still be safely used in controlled environments if directions on the container or packaging are followed. 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
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.
UPC Code: 884955093894
ASIN #: B004O7GLE4