Lycopene (data page)

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This page provides supplementary chemical data on lycopene.

Material Safety Data Sheet[edit]

The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source and follow its directions.

Structure and properties[edit]

All-trans-lycopene with canonical numbering:

Lycopene numbered.svg
Several common geometric isomers of lycopene. In total, there are 72 possible isomers of lycopene (sterically hindered isomers not included).
Structure and properties
Index of refraction, nD  ?
Dielectric constant, εr  ? ε0 at ? °C
Bond strength  ?
Bond length  ?
Bond angle  ?
Magnetic susceptibility  ?

Spectral data[edit]

To date, no X-ray crystal structure of lycopene has been reported.

UV spectra of lycopene in hexane. A typical carotenoid, lycopene displays three absorbance maxima. A peak at 360 nm would indicate the presence of certain cis-isomers
λmax 443, 471, 502 nm in hexane
Extinction coefficient, ε 1.72 × 105 L•mol−1•cm−1(at 502 nm)[1]
Major absorption bands  ? cm−1
Proton NMR  
Carbon-13 NMR  
Other NMR data  
Masses of
main fragments


  1. ^ For hexane:CH2Cl2 98:2 v/v

Except where noted otherwise, data relate to standard ambient temperature and pressure.

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