Structure via PubChem · Public domain (PubChem)
violaxanthin
Sign in to saveAlso known as all-trans-violaxanthin, trans-violaxanthin, zeaxanthin diepoxide, (3S,3'S,5R,5'R,6S,6'S)-5,6:5',6'-diepoxy-5,5',6,6'-tetrahydro-beta,beta-carotene-3,3'-diol, E 161e
Violaxanthin is a xanthophyll pigment with an orange color found in a variety of plants. Violaxanthin is the product of the epoxidation of zeaxanthin where the oxygen atoms are from reactive oxygen species (ROS). Such ROS's arise when a plant is subject to solar radiation so intense that the light cannot all be absorbed by the chlorophyll.
Chemical data
- Formula
- C40H56O4
- Molecular weight
- 600.9 g/mol
- IUPAC name
- (1R,3S,6S)-6-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4S,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-1,5,5-trimethyl-7-oxabicyclo[4.1.0]heptan-3-ol
- SMILES
- C/C(=C\C=C\C=C(\C=C\C=C(\C=C\[C@@]12O[C@@]1(C[C@H](CC2(C)C)O)C)/C)/C)/C=C/C=C(/C=C/[C@@]34O[C@@]3(C[C@H](CC4(C)C)O)C)\C
- InChIKey
- SZCBXWMUOPQSOX-WVJDLNGLSA-N
- XLogP
- 9.8
- Polar surface area
- 65.5 Ų
- H-bond donors
- 2
- H-bond acceptors
- 4
- Formal charge
- 0
via PubChem
~1 min read
Encyclopedic overview
3 sectionsContents
- Food coloring
- Violaxanthin cycle
- References
Violaxanthin is a xanthophyll pigment with an orange color found in a variety of plants. Violaxanthin is the product of the epoxidation of zeaxanthin where the oxygen atoms are from reactive oxygen species (ROS). Such ROS's arise when a plant is subject to solar radiation so intense that the light cannot all be absorbed by the chlorophyll.
==Food coloring== Violaxanthin is used as a food coloring under the E number E161e and INS number 161e. The coloring is not approved for use in food in the EU or the United States, but is allowed in Australia and New Zealand.
Excerpted from Wikipedia’s “violaxanthin” article, available under the CC BY-SA 4.0 licence.