Most companies have a paint based on this pigment colour. It is generally a mid to warm transparent yellow.
PY153 was a popular pigment to use - available in Daniel Smith and Winsor & Newton, but it is no longer available so alternative mixes are being used. You can read a great W&N article about it here.
|Natural Gamboge painted out as a pigment|
Here is the natural gamboge. A touch of a wet brush and the colour is a very pure and lovely yellow.
But it also fades. Here it is in my lightfast tests after just a few months. The left side was exposed to light, the right side wasn't.
Natural gamboge is apparently a powerful purgative/cathartic and/or diuretic depending what you read and is poisonous so not a substance you'd want to ingest by accident. Fascinating though :-)
Please note - this is not a recommended pigment, though traditionally used in Chinese painting.