Properties: Yellow orthorhombic crystals, mp 178-179°. uv max (ethanol): 238, 275, 340 nm (e 18,500, 1600, 4200). Sol in practically all of the common organic solvents; sol in cold water to about 2 mg/ml; in hot water to about 40 mg/ml. Practically insol in hydrocarbons. Labile to alkali; stable to acid.
Melting point: mp 178-179°
Absorption maximum: uv max (ethanol): 238, 275, 340 nm (e 18,500, 1600, 4200)
Derivative Type: 4-Oxide
Percent Composition: C 40.20%, H 3.37%, N 33.48%, O 22.95%
Literature References: Synthesis: M. Ichiba et al., J. Heterocycl. Chem.
14, 175 (1977); K. Senga et al., Heterocycles
6, 273 (1977); synthesis and conversion to fervenulin: M. Ichiba et al., J. Org. Chem.
43, 469 (1978).
Properties: Crystals from alc, mp 179-180°. uv max (alc): 240, 304 nm (log e 4.10, 3.21).
Melting point: mp 179-180°
Absorption maximum: uv max (alc): 240, 304 nm (log e 4.10, 3.21)
产品链接: 483-57-8››