Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Vat Yellow 4
Introduction
Overview
Overview
Vat Yellow 4, also known as Golden Yellow GK, dibenzochrysenedione, dibenzpyrenequinone, Tyrian Yellow I-GOK, and C.I. 59100, is a yellow synthetic anthraquinone vat dye. Chemically it is dibenzo[b,def]chrysene-7,14-dione, or 3,4:8,9-dibenzopyrene-5,10-dione, or C24H12O2. It has the appearance of a viscous orange liquid.
Vat Yellow 4 is used mostly as a dye for textiles and paper.
Together with benzanthrone, it is used in some older pyrotechnic compositions for green and yellow colored smokes.
Vat Yellow 4 is a Group 3 carcinogen according to the IARC, as the evidence of its carcinogenity to humans is inadequate.