2-(3,4-Dihydroxyphenyl)chroman-3,5,7-triol CAS No.7295-85-4 / Cat No.EBD2185091
(+/-)-catechin
()-Catechin hydrate
Catechin
trans-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-1-benzopyran-3,5,7-triol
YK-85 Light Yellow
2-(3,4-Dihydroxyphenyl)chroman-3,5,7-triol
Catechin
trans-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-1-benzopyran-3,5,7-triol
YK-85 Light Yellow
Properties
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Appearance:
White to yellow powder
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Melting point:
~200 °C (dec.)
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Storage temperature:
2-8°C
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Solubility:
Soluble in methanol.
NMR Spectrum
Prediction： 1H NMR (CD3OD, 500 MHz), delta: 4.56 (1 H, d, J = 7.5 Hz, H-2), 3.97 (1 H, m, H-3), 2.85 (1 H, dd, J = 16.0, 5.5 Hz, H-4a), 2.50 (1 H, dd, J = 16.0, 8.0 Hz, H-4b), 5.93 (1 H, d, J = 1.0 Hz, H-6), 5.86 (1 H, br s, H-8), 6.84 (1 H, br s, H-2), 6.76 (1 H, d, J = 8.0 Hz, H-5), 6.72 (1 H, d, J = 8.5 Hz, H-6)
1H NMR
13C NMR
