Hipposudoric acid

Hipposudoric acid

Names
IUPAC name 3-Carboxymethyl-5-hydroxy-1,4,8-trioxo-4,8-dihydro-1H-fluorene-9-carboxylic acid
Identifiers
CAS Number	851367-73-2 Y
3D model (JSmol)	Interactive image
ChemSpider	21474973 Y
InChI InChI=1S/C15H6O8/c16-5-1-2-6(17)9-8(5)11-10(12(9)15(22)23)7(18)3-4(13(11)19)14(20)21/h1-3,16H,(H,20,21)(H,22,23) Y Key: VQUMVNJFHSBVDL-UHFFFAOYSA-N Y InChI=1/C15H6O8/c16-5-1-2-6(17)9-8(5)11-10(12(9)15(22)23)7(18)3-4(13(11)19)14(20)21/h1-3,16H,(H,20,21)(H,22,23) Key: VQUMVNJFHSBVDL-UHFFFAOYAR
SMILES c1cc(=O)c-2c(c3=c(c2c1O)c(=O)c(cc3=O)C(=O)O)C(=O)O
Properties
Chemical formula	C16H8O8
Molar mass	328.23 g·mol−1
Appearance	Red
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y  (what is YN ?)
Infobox references

Hipposudoric acid is a red pigment found in the skin secretions of the hippopotamus; although the secretions are often known as "blood sweat" (thus the name "hipposudoric", referring to "hippo sweat"), they are neither blood nor sweat.

Like its orange-colored analog norhipposudoric acid, hipposudoric acid functions both as a natural sunscreen and as an antimicrobial agent. It is derived from the oxidative dimerization of homogentisic acid.