ChemicalBook--->CAS DataBase List--->1891-29-8

1891-29-8

1891-29-8 Structure

1891-29-8 Structure
IdentificationBack Directory
[Name]

LACTUCIN
[CAS]

1891-29-8
[Synonyms]

LACTUCIN
Lactucine
(3aR)-3,3aβ,4,5,9aβ,9bα-Hexahydro-4α-hydroxy-9-(hydroxymethyl)-6-methyl-3-methyleneazuleno[4,5-b]furan-2,7-dione
(3aR,4S,9aS,9bR)-3,3a,4,5,9a,9b-Hexahydro-4-hydroxy-9-(hydroxymethyl)-6-methyl-3-methyleneazuleno[4,5-b]furan-2,7-dione
[Molecular Formula]

C15H16O5
[MDL Number]

MFCD24849263
[MOL File]

1891-29-8.mol
[Molecular Weight]

276.28
Chemical PropertiesBack Directory
[Melting point ]

228-233°
[alpha ]

D +49° (c = 0.90 in methanol), +77.9° (c = 3.44 in pyridine)
[Boiling point ]

575.6±50.0 °C(Predicted)
[density ]

1.39±0.1 g/cm3(Predicted)
[pka]

13.53±0.60(Predicted)
[Contact allergens]

Lactucin, as lactucopicrin, is a sesquiterpene lactone contained in lettuce (Lactuca sativa L.)
[LogP]

0.330 (est)
[CAS DataBase Reference]

1891-29-8
Hazard InformationBack Directory
[Definition]

ChEBI: An azulenofuran that is 3-methylidene-3,3a,4,5,9a,9b-hexahydroazuleno[4,5-b]furan-2,7-dione carrying additional hydroxy, methyl and hydroxymethyl substituents at positions 4, 6 and 9 respectively (the 3aR,4S,9 S,9bR-diastereomer). Found in chicory.
[Description]

Lactucin, as lactucopicrin, is a sesquiterpene lactone contained in lettuce (Lactuca sativa).
Safety DataBack Directory
[Symbol(GHS) ]


GHS07
[Signal word ]

Warning
[Hazard statements ]

H317
[Precautionary statements ]

P280-P302+P352
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