| dbo:abstract |
2,3,5,6,8-Pentahydroxy-1,4-naphthalenedione, also called 2,3,5,6,8-pentahydroxy-1,4-naphthoquinone or spinochrome D, is an organic compound with formula C10H6O5, formally derived from 1,4-naphthoquinone through the replacement of five hydrogen atoms by hydroxyl (OH) groups. Spinochrome D occurs naturally as a brownish red pigment in the shell and spines of sea urchins such as the Japanese aka-uni (Pseudocentrotus depressus). It is soluble in diethyl ether and crystallizes as brownish red needles that sublime at 285−295 °C. The compound gives a yellowish brown solution when treated with sodium hydroxide, a bluish green solution with ferric chloride, and a violet precipitate with lead acetate. It forms a five-fold acetate ester, C10HO2(CH3COO)5, that crystallizes from methanol as yellow needles that melt at 185−186 °C. (en) |
| dbo:iupacName |
2,3,5,6,8-Pentahydroxynaphthalene-1,4-dione (en) |
| dbo:thumbnail |
wiki-commons:Special:FilePath/Spinochrome_D.svg?width=300 |
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| dbo:wikiPageWikiLink |
dbr:Hydrogen dbr:Pseudocentrotus_depressus dbc:1,4-Naphthoquinones dbc:Hydroxyquinols dbc:Polyols dbr:Ester dbr:Organic_compound dbr:Pigment dbr:Sublimation_(chemistry) dbr:Acetate dbc:Catechols dbc:Hydroxynaphthoquinones dbr:Lead(II)_acetate dbr:Diethyl_ether dbr:Sodium_hydroxide dbr:Methanol dbr:Hydroxyl dbr:Exoskeleton dbr:Naphthoquinone dbr:2,3,5,6,7,8-Hexahydroxy-1,4-naphthalenedione dbr:2,3,5,7-Tetrahydroxy-1,4-naphthoquinone dbr:Iron_(III)_chloride |
| dbp:imagefile |
Spinochrome D.svg (en) Spinochrome-D-3D-balls.png (en) |
| dbp:imagename |
Ball-and-stick model (en) Skeletal formula (en) |
| dbp:imagesize |
170 (xsd:integer) |
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23568 (xsd:integer) |
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dbt:Chem dbt:Chembox dbt:Chembox_Hazards dbt:Chembox_Identifiers dbt:Chembox_Properties dbt:Reflist dbt:Cascite dbt:Chemspidercite dbt:Ebicite dbt:Fdacite dbt:Stdinchicite |
| dct:subject |
dbc:1,4-Naphthoquinones dbc:Hydroxyquinols dbc:Polyols dbc:Catechols dbc:Hydroxynaphthoquinones |
| gold:hypernym |
dbr:Compound |
| rdf:type |
owl:Thing dul:ChemicalObject dbo:ChemicalSubstance wikidata:Q11173 yago:WikicatMolecularFormulas yago:WikicatNaphthoquinones yago:Abstraction100002137 yago:Communication100033020 yago:Fat-solubleVitamin115089472 yago:Food100021265 yago:Formula106816935 yago:Matter100020827 yago:Message106598915 yago:MolecularFormula106817173 yago:Nutriment107570720 yago:PhysicalEntity100001930 dbo:ChemicalCompound yago:Statement106722453 yago:Substance100020090 yago:Vitamin115089258 yago:VitaminK115092751 umbel-rc:ChemicalSubstanceType |
| rdfs:comment |
2,3,5,6,8-Pentahydroxy-1,4-naphthalenedione, also called 2,3,5,6,8-pentahydroxy-1,4-naphthoquinone or spinochrome D, is an organic compound with formula C10H6O5, formally derived from 1,4-naphthoquinone through the replacement of five hydrogen atoms by hydroxyl (OH) groups. Spinochrome D occurs naturally as a brownish red pigment in the shell and spines of sea urchins such as the Japanese aka-uni (Pseudocentrotus depressus). It is soluble in diethyl ether and crystallizes as brownish red needles that sublime at 285−295 °C. (en) |
| rdfs:label |
2,3,5,6,8-Pentahydroxy-1,4-naphthalenedione (en) |
| owl:sameAs |
freebase:2,3,5,6,8-Pentahydroxy-1,4-naphthalenedione yago-res:2,3,5,6,8-Pentahydroxy-1,4-naphthalenedione wikidata:2,3,5,6,8-Pentahydroxy-1,4-naphthalenedione http://azb.dbpedia.org/resource/۲٬۳٬۵٬۶٬۸-پنتاهیدروکسی-۴٬۱-نفتالندیون dbpedia-fa:2,3,5,6,8-Pentahydroxy-1,4-naphthalenedione dbpedia-sh:2,3,5,6,8-Pentahydroxy-1,4-naphthalenedione dbpedia-sr:2,3,5,6,8-Pentahydroxy-1,4-naphthalenedione https://global.dbpedia.org/id/4GDUh |
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wikipedia-en:2,3,5,6,8-Pentahydroxy-1,4-naphthalenedione?oldid=1072251658&ns=0 |
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wiki-commons:Special:FilePath/Spinochrome-D-3D-balls.png wiki-commons:Special:FilePath/Spinochrome_D.svg |
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wikipedia-en:2,3,5,6,8-Pentahydroxy-1,4-naphthalenedione |
| is dbo:wikiPageRedirects of |
dbr:Spinochrome_D dbr:C10H6O7 dbr:2,3,5,6,8-pentahydroxy-1,4-naphthalenedione dbr:2,3,5,6,8-pentahydroxy-1,4-naphthoquinone |
| is dbo:wikiPageWikiLink of |
dbr:Spinochrome_D dbr:2,3,5,7-Tetrahydroxy-1,4-naphthalenedione dbr:C10H6O7 dbr:2,3,5,6,8-pentahydroxy-1,4-naphthalenedione dbr:Naphthoquinone dbr:2,3,5,6,8-pentahydroxy-1,4-naphthoquinone |
| is foaf:primaryTopic of |
wikipedia-en:2,3,5,6,8-Pentahydroxy-1,4-naphthalenedione |
