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19891-74-8

19891-74-8 Structure

19891-74-8 Structure
IdentificationBack Directory
[Name]

lycoxanthin
[CAS]

19891-74-8
[Synonyms]

lycoxanthin
ψ,ψ-Caroten-16-ol
all-trans-Lycoxanthin
[Molecular Formula]

C40H56O
[MOL File]

19891-74-8.mol
[Molecular Weight]

552.87
Chemical PropertiesBack Directory
[Melting point ]

168°
[Boiling point ]

563.32°C (rough estimate)
[density ]

0.9743 (rough estimate)
[refractive index ]

1.4800 (estimate)
[pka]

14.68±0.10(Predicted)
Hazard InformationBack Directory
[Definition]

ChEBI: A carotenol that is carotenol psi,psi-carotene substituted by a hydroxy group.
[Purification Methods]

Crystallise lycoxanthin from diethyl ether/light petroleum, *C6H6/pet ether or CS2. Purify it also by chromatography on columns of CaCO3, Ca(OH)2 or deactivated alumina, and washing with *benzene and eluting with 3:1 *C6H6/MeOH. Store it in the dark, in an inert atmosphere, at -20o. The dipalmitate ester crystallises from *C6H6/MeOH and has m 76o. [Beilstein 1 III 2051, 1 IV 2368.]
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