73341

Echinenon

≥95.0% (HPLC), solid

• Synonym(e): β,β-Carotin4-on
• Empirische Formel (Hill-System): C₄₀H₅₄O
• CAS-Nummer: 432-68-8
• Molekulargewicht: 550.86
• Beilstein: 2030114
• EG-Nummer: 207-083-4
• MDL-Nummer: MFCD06656303
• UNSPSC-Code: 12352202
• PubChem Substanz-ID: 329764812
• NACRES: NA.32

Eigenschaften

• Produktbezeichnung: Echinenon, ≥95.0% (HPLC)
• Assay: ≥95.0% (HPLC)
• Form: solid
• λ: in hexane (with 2% dichloromethane)
• UV-Absorption: λ: 459 nm±5 nm A_max
• Lagertemp.: −20°C
• SMILES String: CC(/C=C/C1=C(C)C(CCC1(C)C)=O)=C\C=C\C(C)=C\C=C\C=C(C)\C=C\C=C(\C=C\C2=C(C)CCCC2(C)C)C
• InChI: 1S/C40H54O/c1-30(18-13-20-32(3)23-25-36-34(5)22-15-28-39(36,7)8)16-11-12-17-31(2)19-14-21-33(4)24-26-37-35(6)38(41)27-29-40(37,9)10/h11-14,16-21,23-26H,15,22,27-29H2,1-10H3/b12-11+,18-13+,19-14+,25-23+,26-24+,30-16+,31-17+,32-20+,33-21+
• InChIKey: QXNWZXMBUKUYMD-QQGJMDNJSA-N

Beschreibung

Allgemeine Beschreibung

Echinenone is a carotenoid with a conjugated carbonyl group.[1] Echinenone (4-keto-β-carotene) is a monoketo compound, is an intermediate between β-carotene and canthaxanthin in animals.[2] It is one of the major carotenoids of Anabaena sp.,[3] and also present in Micrococcus roseus.[2] It is located in the thylakoid membrane of Anabaena. The conversion of β-carotene to echinenone is catalysed by CrtO, a β-carotene ketolase.[3]

Anwendung

Echinenone may be used as an external standard for the extraction of carotenoid from plasma samples.[4] It may also been used as an internal standard, added to samples for extraction and quantification.[5][6]

Biochem./physiol. Wirkung

Echinenone binds to glocobacter rhodopsin and functions as a light harvesting antenna in Gloeobacter violaceous.[7]

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable