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CAS No 32619-42-4 , Oleuropein

  • Name: Oleuropein
  • Synonyms: Oleuropein;Methyl (4S,5E,6S)-4-[2-[2-(3,4-dihydroxyphenyl)ethoxy]-2-oxoethyl]-5-ethylidene-6-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4H-pyran-3-carboxylate; Olive Leaf Extract;
  • CAS Registry Number:
  • Melting Point: 89-90°C
  • Density: 1.5 g/cm3
  • Refractive index: 1.629
  • Safety Statements: 24/25
  • EINECS: 251-129-6
  • Molecular Weight: 540.51
  • InChI: InChI=1/C25H32O13/c1-3-13-14(9-19(29)35-7-6-12-4-5-16(27)17(28)8-12)15(23(33)34-2)11-36-24(13)38-25-22(32)21(31)20(30)18(10-26)37-25/h3-5,8,11,14,18,20-22,24-28,30-32H,6-7,9-10H2,1-2H3/b13-3+/t14-,18+,20+,21-,22+,24-,25-/m0/s1
  • Molecular Formula: C25H32O13
  • Molecular Structure:CAS No:32619-42-4 Oleuropein

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32619-42-4 OLEUROPEIN

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32619-42-4 OLEUROPEIN HPLC GRADE

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32619-42-4 Oleuropein

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32619-42-4 2-(3,4-dihydroxyphenyl)ethyl [2S-(2α,3E,4β)]-3-ethylidene-2-(β-D-glucopyranosyloxy)-3,4-dihydro-5-(methoxycarbonyl)-2H-pyran-4-acetate

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32619-42-4 Oleuropein

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32619-42-4 2-(3,4-dihydroxyphenyl)ethyl [2S-(2α,3E,4β)]-3-ethylidene-2-(β-D-glucopyranosyloxy)-3,4-dihydro-5-(methoxycarbonyl)-2H-pyran-4-acetate

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32619-42-4 Oleuropein-Botanical reference materials/phytochemicals

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32619-42-4 OLEUROPEIN 40 MM OLEA EUROPAEA (OLIVE) LEAF EXTRACT

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32619-42-4 Oleuropein

  • Oleuropein
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32619-42-4 2-(3,4-dihydroxyphenyl)ethyl [2S-(2α,3E,4β)]-3-ethylidene-2-(β-D-glucopyranosyloxy)-3,4-dihydro-5-(methoxycarbonyl)-2H-pyran-4-acetate

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References of Oleuropein
Title: Oleuropein
CAS Registry Number: 32619-42-4
CAS Name: [2S-(2a,3E,4b)]-3-Ethylidene-2-(b-D-glucopyranosyloxy)-3,4-dihydro-5-(methoxycarbonyl)-2H-pyran-4-acetic acid 2-(3,4-dihydroxyphenyl)ethyl ester
Molecular Formula: C25H32O13
Molecular Weight: 540.51
Percent Composition: C 55.55%, H 5.97%, O 38.48%
Literature References: Bitter glucoside; first secoiridoid to be isolated. Isolation from olives and the leaves and bark of the olive tree, Olea europaea L., Oleaceae and structural studies: Panizzi et al., Gazz. Chim. Ital. 90, 1449 (1960); Beyerman et al., Bull. Soc. Chim. Fr. 1961, 1821; Shasha, Leibowitz, J. Org. Chem. 26, 1948 (1961). Isoln from the ripe fruits of Ligustrum lucidum and L. japonicum Thunb, Oleaceae: Inouye, Nishioka, Tetrahedron 28, 4231 (1972). Revised structure and stereochemistry: Inouye et al., Tetrahedron Lett. 1970, 2459. Pharmacology: Petkov, Manolov, Arzneim.-Forsch. 22, 1476 (1972). Partial synthesis: A. Bianco et al., J. Nat. Prod. 55, 760 (1992).
Properties: Minute crystals from ethyl acetate, mp 87-89°. Hygroscopic. [a]D20 -147° (H2O, alcohol, or acetone). Shows mutarotation [a]D20 -127° after 9 hrs (H2O). Freely sol in acetone, ethanol, methanol, pyridine, glacial acetic acid, 5% aq NaOH soln. Moderately sol in water, dioxane, butanol, ethyl acetate, butyl acetate. Practically insol in ether, petr ether, chloroform, benzene, carbon tetrachloride.
Melting point: mp 87-89°
Optical Rotation: [a]D20 -147° (H2O, alcohol, or acetone); [a]D20 -127°