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CAS No 546-43-0 , Alantolactone

  • Name: Alantolactone
  • Synonyms: Alantolactone; 8b-hydroxy-4aH-eudesm-5-en-12-oic acid;[3aR-(3aa,5b,8ab,9aa)]-3a,5,6,7,8,8a,9,9a-Octahydro-5,8a-dimethyl-3-methylenenaphtho-[2,3-b]furan-2(3H)-one;
  • CAS Registry Number:
  • Melting Point: 78-79 C
  • Flash Point: 111.5°C
  • Boiling Point: 275 C
  • Density: 1.08g/cm3
  • Refractive index: 1.534
  • Safety Statements: 26-36
  • Hazard Symbols: Xi
  • Flash Point: 111.5°C
  • EINECS: 208-899-3
  • Molecular Weight: 232.32
  • InChI: InChI=1/C15H20O2/c1-9-5-4-6-15(3)8-13-11(7-12(9)15)10(2)14(16)17-13/h7,9,11,13H,2,4-6,8H2,1,3H3/t9-,11+,13+,15+/m0/s1
  • Risk Statements: 36/37/38
  • Molecular Formula: C15H20O2
  • Molecular Structure:CAS No:546-43-0 Alantolactone

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References of Alantolactone
Title: Alantolactone
CAS Registry Number: 546-43-0
CAS Name: [3aR-(3aa,5b,8ab,9aa)]-3a,5,6,7,8,8a,9,9a-Octahydro-5,8a-dimethyl-3-methylenenaphtho[2,3-b]furan-2(3H)-one
Synonyms: 8b-hydroxy-4aH-eudesm-5-en-12-oic acid g-lactone; helenin; alant camphor; elecampane camphor; inula camphor
Molecular Formula: C15H20O2
Molecular Weight: 232.32
Percent Composition: C 77.55%, H 8.68%, O 13.77%
Literature References: A terpene from roots of Inula helenium L., Compositae: Kallen, Ber. 6, 1506 (1873); 9, 154 (1876); Ruzicka et al., Helv. Chim. Acta 14, 397, 1090 (1931); 16, 268 (1933). Structure: Marshall, Cohen, J. Org. Chem. 29, 3727 (1964). Stereoselective synthesis: Marshall et al., J. Am. Chem. Soc. 88, 3408 (1966).
Properties: Crystals from alcohol, mp 78-79°. bp 275°. [a]D +175° (chloroform). uv max (ethanol): 212 nm (e 9500). Volatile with steam. Freely sol in alcohol, chloroform, benzene, ether, oils. Practically insol in water.
Melting point: mp 78-79°
Boiling point: bp 275°
Optical Rotation: [a]D +175° (chloroform)
Absorption maximum: uv max (ethanol): 212 nm (e 9500)