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Hipposudoric acid

From Wikipedia, the free encyclopedia

Hipposudoric acid
Names
Preferred IUPAC name
3-(Carboxymethyl)-5-hydroxy-1,4,8-trioxo-4,8-dihydro-1H-fluorene-9-carboxylic acid
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/C16H8O8/c17-6-1-2-7(18)11-10(6)13-12(14(11)16(23)24)8(19)3-5(15(13)22)4-9(20)21/h1-3,17H,4H2,(H,20,21)(H,23,24) checkY
    Key: JTNHFMSBPHUJFI-UHFFFAOYSA-N checkY
  • O=C1C=CC(O)=C2C(C(C(CC(O)=O)=CC3=O)=O)=C3C(C(O)=O)=C12
Properties
C16H8O8
Molar mass 328.232 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).
checkY verify (what is checkY☒N ?)

Hipposudoric acid is a red pigment found in the skin secretions of the hippopotamus;[1] 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.[2] It is derived from the oxidative dimerization of homogentisic acid.[3]

It has been both widely and falsely reported that hipposudoric acid colors hippo milk pink. This is not the case; hippo milk is white or beige in color.[4]

Norhipposudoric acid

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Transcription

References

  1. ^ Kimiko Hashimoto; Yoko Saikawa; Masaya Nakata (2007). "Studies on the red sweat of the Hippopotamus amphibius" (PDF). Pure Appl. Chem. 79 (4): 507–517. doi:10.1351/pac200779040507. S2CID 12944558.
  2. ^ Yoko Saikawa; Kimiko Hashimoto; Teruyuki Komiya (2004). "The red sweat of the hippopotamus". Nature. 429 (6990): 363. doi:10.1038/429363a. PMID 15164051. S2CID 4404922.
  3. ^ Moriya Kai; Matsuura Masanori; Saikawa Yoko; Hashimoto Kimiko; Yamaguguchi Ayumu; Sakamoto Kazuhiro; Akihisa Narito; Hirata Hiroyoshi (2006). "Properties of the enzyme responsible to the synthesis of hipposudoric and norhipposudoric acids, the pigments in the red sweat of the hippopotamus". Nippon Kagakkai Koen Yokoshu. 86 (2): 1314.
  4. ^ "FACT CHECK: Is Hippopotamus Milk Pink?". Snopes.com. Retrieved 2022-02-16.
This page was last edited on 20 December 2023, at 20:00
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