carotin

Lycopersicin (or lycopin) is a hydrocarbon pigment having the same formula as carotin.

To separate the carotin from xanthophyll place the ether solution in a small open dish and evaporate to a small volume.

Associated with it are other pigments, which have been variously reported as carotin, phycoxanthin, etc.

It is unlike carotin and xanthophyll in that it has basic properties, forming salts with acids, which are blue in color.