euxanthin

from The Century Dictionary.

• noun The essential constituent of purree or Indian yellow, which is used as a pigment.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Chem.) A yellow pigment imported from India and China. It has a strong odor, and is said to be obtained from the urine of herbivorous animals when fed on the mango. It consists if a magnesium salt of euxanthic acid. Called also puri, purree, and Indian yellow.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Indian yellow or magnesium euxanthate, a transparent yellow pigment used in oil paint.