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CAS No 1180-71-8 , Limonin

  • Name: Limonin
  • Synonyms: Limonin;Limonoate D-ring-lactone; Limonoic acid di-delta-lactone;-;
  • CAS Registry Number:
  • Melting Point: 298 C
  • Density: 1.39 g/cm3
  • Refractive index: 1.602
  • Safety Statements: S36
  • Hazard Symbols: Xn: Harmful;
  • Molecular Weight: 470.52
  • InChI: InChI=1/C26H30O8/c1-22(2)15-9-16(27)24(4)14(25(15)12-31-18(28)10-17(25)33-22)5-7-23(3)19(13-6-8-30-11-13)32-21(29)20-26(23,24)34-20/h6,8,11,14-15,17,19-20H,5,7,9-10,12H2,1-4H3/t14-,15-,17-,19-,20?,23-,24-,25+,26+/m0/s1
  • Risk Statements: R20/21/22
  • Molecular Formula: C26H30O8
  • Molecular Structure:CAS No:1180-71-8 Limonin

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References of Limonin
Title: Limonin
CAS Registry Number: 1180-71-8
CAS Name: Limonoic acid di-d-lactone
Synonyms: 8-(3-furyl)decahydro-2,2,4a,8a-tetramethyl-11H,13H-oxireno[d]pyrano[4￠,3￠:3,3a]isobenzofuro[5,4-f][2]benzopyran-4,6,13(2H,5aH)-trione; limonoic acid 3,19:16,17-dilactone
Molecular Formula: C26H30O8
Molecular Weight: 470.51
Percent Composition: C 66.37%, H 6.43%, O 27.20%
Literature References: Tetracyclic triterpenoid; bitter principle of citrus fruits. Isoln: Bernays, Ann. 40, 317 (1841). Improved isoln and purification: P. G. Pifferi et al., Ital. J. Food Sci. 5, 269 (1993). Structure: A. Melera et al., Helv. Chim. Acta 40, 1420 (1957). Stereochemistry: D. Arigoni et al., Experientia 16, 41 (1960); S. Arnott et al., ibid. 49. Partial synthesis: C. Lüthy et al., Helv. Chim. Acta 57, 1060 (1974). HPLC determn in citrus juice: W. W. Widmer, J. Agric. Food Chem. 39, 1472 (1991). Review of chemistry: V. P. Maier et al., ACS Symp. Ser. 143, 63-82 (1980); and removal of juice bitterness: R. F. H. Dekker, Aust. J. Biotechnol. 2, 65 (1988).
Properties: Bitter crystals from methylene chloride + isopropanol or acetic acid, mp 298°. [a]D -128° (c = 1.21 in acetone). uv max: 207, 285 nm (e 7000, 38). Slightly sol in water, ether; sol in alcohol, glacial acetic acid.
Melting point: mp 298°
Optical Rotation: [a]D -128° (c = 1.21 in acetone)
Absorption maximum: uv max: 207, 285 nm (e 7000, 38)