Pterobilin

Pterobilin
Identifiers
CAS Number	20890-42-0;
3D model (JSmol)	Interactive image;
ChemSpider	4952646;
PubChem CID	5287802;
UNII	ZEK8SD9LJN ;
	InChI InChI=1S/C23H21N3O2S2/c1-15-3-5-19(16(2)11-15)20-14-30-23(26-20)29-13-18-4-6-21(28-18)22(27)25-12-17-7-9-24-10-8-17/h3-11,14H,12-13H2,1-2H3,(H,25,27) Key: QWUAUCVIVCXEEL-UHFFFAOYSA-N;
	SMILES CC1=C(CCC(=O)O)\C(=C\c2[nH]c(\C=C/3\N=C(\C=C\4/NC(=O)C(=C4C)CCC(=O)O)C(=C3C)C=C)c(C=C)c2C)\NC1=O;
Properties
Chemical formula	C33H34N4O6
Molar mass	582.657 g·mol−1
Density	1.3±0.1 g/cm3
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Pterobilin also called biliverdin IXγ in the Fischer nomenclature, is a blue bile pigment found in Nessaea spp., Graphium agamemnon, G. antiphates, G. doson, and G. sarpedon. It is one of only a few blue pigments found in any animal species, as most animals use iridescence to create blue coloration. Other blue pigments of animal origin include phorcabilin, used by other butterflies in Graphium and Papilio (specifically P. phorcas and P. weiskei), and sarpedobilin, which is used by Graphium sarpedon.

Identifiers

CAS Number	20890-42-0
3D model (JSmol)	Interactive image
ChemSpider	4952646
PubChem CID	5287802
UNII	ZEK8SD9LJN^Y
InChI InChI=1S/C23H21N3O2S2/c1-15-3-5-19(16(2)11-15)20-14-30-23(26-20)29-13-18-4-6-21(28-18)22(27)25-12-17-7-9-24-10-8-17/h3-11,14H,12-13H2,1-2H3,(H,25,27) Key: QWUAUCVIVCXEEL-UHFFFAOYSA-N
SMILES CC1=C(CCC(=O)O)\C(=C\c2[nH]c(\C=C/3\N=C(\C=C\4/NC(=O)C(=C4C)CCC(=O)O)C(=C3C)C=C)c(C=C)c2C)\NC1=O
Properties
Chemical formula	C₃₃H₃₄N₄O₆
Molar mass	582.657 g·mol⁻¹
Density	1.3±0.1 g/cm³
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references