Trichotomine is a bright blue pigment found in the berries of the plant Clerodendrum trichotomum, which is native to China and Japan. It has a novel chromophore structure which differs from previously studied plant pigments.[1]

Trichotomine
Names
IUPAC name
(2E,5S)-2-[(5S)-5-carboxy-3-oxo-6,11-dihydro-5H-indolizino[8,7-b]indol-2-ylidene]-3-oxo-6,11-dihydro-5H-indolizino[8,7-b]indole-5-carboxylic acid
Identifiers
3D model (JSmol)
UNII
  • C1[C@H](N2C(=C/C(=C\3/C=C4C5=C(C[C@H](N4C3=O)C(=O)O)C6=CC=CC=C6N5)/C2=O)C7=C1C8=CC=CC=C8N7)C(=O)O
Properties
C30H20N4O6
Molar mass 532.512 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

References

edit
  1. ^ Iwadare S, Shizuri Y, Yamada K, Hirata Y. Synthesis of trichotomine, a blue pigment obtained from clerodendron trichotomum thunb. Tetrahedron. 1978; 34(10):1457-1459. doi:10.1016/0040-4020(78)80166-5