![1-[1-oxo-5-(3,4-methylenedioxyphenyl)-(2E,4E)-pentadienyl]-piperidinE,CAS No. 94-62-2.](https://public.whmall.com/system/0/chemical/image/2007/09/04/1188888888-438851_C17H19NO3.png "1-[1-oxo-5-(3,4-methylenedioxyphenyl)-(2E,4E)-pentadienyl]-piperidinE,CAS No. 94-62-2.")
1-[1-oxo-5-(3,4-methylenedioxyphenyl)-(2E,4E)-pentadienyl]-piperidinE CAS No.94-62-2 / Cat No.EBD438851
1-[1-oxo-5-(3,4-methylenedioxyphenyl)-(2E,4E)-pentadienyl]-piperidinE
piperine
piperin
Properties
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Appearance:
slightly yellow powder
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Density:
1.211 g/cm3
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Melting point:
131-135 °C(lit.)
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Boiling point:
498.5 °C at 760 mmHg
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Flashing point:
255.3 °C
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Solubility:
40 mg/L (18 ºC)
Safety Information
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Symbol:
-
Signal words:
Warning -
Hazard statements:
H302 Harmful if swallowed.
NMR Spectrum
Prediction： 1H NMR (500 MHz, CDCl3) delta: 6.43 (1H, d, J=14.0 Hz, H-2), 7.39 (1H, m, H-3), 6.696.74 (2H, m, H-4, 5), 3.52 (2H, br.s, H-1?), 1.58 (2H, m, H-2?), 1.65 (2H, m, H-3?), 1.58 (2H, m, H-4?), 3.62 (2H, br. s, H-5?), 6.97 (1H, s, H-2?), 6.88 (1H, dd, J=1.5, 7.5 Hz, H-6?), 6.77 (1H, d, J=7.5 Hz, H-5?), 5.96 (2H, s, ?OCH2O?)
1H NMR
13C NMR
