Formononetin CAS No.485-72-3 / Cat No.EBD2184956
Red Clover Extract
7-hydroxy-3-(4-methoxyphenyl)-4H-chromen-4-one
7-Hydroxy-3-(4'-Methoxyphenyl)-4H-Benzopyran-4-One
7-Hydroxy-4'-methoxyisoflavone
Formononetin
7-hydroxy-3-(4-methoxyphenyl)-4H-chromen-4-one
7-Hydroxy-3-(4'-Methoxyphenyl)-4H-Benzopyran-4-One
7-Hydroxy-4'-methoxyisoflavone
Properties
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Appearance:
off-white powder
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Density:
1.329 g/cm3
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Melting point:
257-261 °C
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Boiling point:
479.4 °C at 760 mmHg
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Flashing point:
183.4 °C
Safety Information
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Symbol:
-
Signal words:
Warning -
Hazard statements:
H315 Causes skin irritation.
H319 Causes serious eye irritation.
H335 May cause respiratory irritation.
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Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
NMR Spectrum
Prediction： In the 1H NMR spectrum, H-2 appeared as a single peak at the lowest field; H-6 (delta6.92) coupling with both H-5 (delta795, d) and H-8 (delta6.85, d), appeared as a typical dd peak (J=8.8, 2.35 Hz).The highly structural symmetry of B ring caused the signals of H-3 and 5 to resonate as one group of multiple peaks (delta6.96) in the low field, followed by those of H-2 and H-6 (delta7.50, m). In the high field, the methyl of 4OCH3 showed a sharp single peak at delta 3.79.
1H NMR
13C NMR
