Rosmarinic acid CAS No.20283-92-5 / Cat No.EBD2138586
Rosemarinic acid
(R)-alpha-[3-(3,4-Dihydroxyphenyl)-1-oxo-2E-propenyl]oxy-3,4-dihydroxybenzenepropanoic acid
(2S)-3-(3,4-dihydroxyphenyl)-2-{[(2E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl]oxy}propanoic acid
(2R)-3-(3,4-dihydroxyphenyl)-2-{[(2E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl]oxy}propanoic acid
3-(3,4-dihydroxyphenyl)-2-{[(2E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl]oxy}propanoic acid
Rosmarinic acid
(R)-alpha-[3-(3,4-Dihydroxyphenyl)-1-oxo-2E-propenyl]oxy-3,4-dihydroxybenzenepropanoic acid
(2S)-3-(3,4-dihydroxyphenyl)-2-{[(2E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl]oxy}propanoic acid
(2R)-3-(3,4-dihydroxyphenyl)-2-{[(2E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl]oxy}propanoic acid
Properties
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Appearance:
Brown fine powder
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Density:
1.33
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Melting point:
171-175 °C(lit.)
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Boiling point:
694.7 °C at 760 mmHg
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Flashing point:
254.5 °C
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Storage temperature:
2-8°C
Safety Information
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Symbol:
-
Signal words:
Danger -
Hazard statements:
H301 Toxic if swalloed.
H400 Very toxic to aquatic life.
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Precautionary statements:
P273 Avoid release to the environment.
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
NMR Spectrum
Prediction： 1H NMR (500 MHz, MeOH-d4) delta ppm 3.00 (dd, J=14.31, 8.44 Hz, 1 H) 3.09 (dd, J=14.43, 4.16 Hz, 1 H) 5.18 (dd, J=8.44, 4.28 Hz, 1 H) 6.26 (d, J=15.65 Hz, 1 H) 6.61 (dd, J=7.95, 1.83 Hz, 1 H) 6.70 (d, J=7.83 Hz, 1 H) 6.75 (d, J=1.71 Hz, 1 H) 6.78 (d, J=8.07 Hz, 1 H) 6.95 (dd, J=8.31, 1.96 Hz, 1 H) 7.04 (d, J=1.96 Hz, 1 H) 7.55 (d, J=15.90 Hz, 1 H)
1H NMR
13C NMR
