H-Pyr-OEt CAS No.7149-65-7 / Cat No.EBD2198175
L-焦谷氨酸乙酯
(S)-(+)-2-吡咯酮-5-羧酸乙酯
L-焦谷氨酸乙酯
(S)-(+)-2-吡咯idone-5-羧酸叔丁酯 乙酯
(S)-(+)-2-吡咯烷酮-5-甲酸乙酯
(S)-(+)-2-吡咯烷酮-5-羧酸乙酯
(S)-5-氧代吡咯烷-2-羧酸乙酯
Properties
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Appearance:
Colorless or yellowish oily liquid
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Density:
1.161 g/cm3
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Melting point:
47-51 °C(lit.)
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Boiling point:
176 °C/12 mmHg(lit.)
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Flashing point:
113 °C
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Storage temperature:
0-6°C
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Optical rotation:
[α]19/D +3.3°, c = 10 in ethanol
Safety Information
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Symbol:
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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： 1H-NMR (300 MHz, CDCl3): delta (ppm)=7.04 (br, 1H, NH), 4.10-4.22 (m, 3H, H-2, ester CH2), 2.22-2.48 (m, 3H, H-3alpha, H-4), 2.07-2.22 (m, 1H, H-3beta), 1.22 (t, 3H, J=7.1 Hz, ester CH3).
1H NMR
13C NMR
