VIOLAXANTHIN
VIOLAXANTHIN Basic information
- Product Name:
- VIOLAXANTHIN
- Synonyms:
-
- ZEAXANTHIN DIEPOXIDE
- VIOLAXANTHIN
- (1R,3S,6S)-6-[18-[(1R,3S,6S)-3-hydroxy-1,5,5-trimethyl-7-oxabicyclo[4.1.0]hept-6-yl]-3,7,12,16-tetramethyl-octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-1,5,5-trimethyl-7-oxabicyclo[4.1.0]heptan-3-ol
- Violoxanthin
- (3S,3'S,5R,5'R,6S,6'S,9E)-5,6:5',6'-Bisepoxy-5,5',6,6'-tetrahydro-β,β-carotene-3,3'-diol
- 5α,6α:5'α,6'α-Bisoxy-5,5',6,6'-tetrahydro-β,β-carotene-3β,3'β-diol
- 5α,6α:5'α,6'α-Bisoxy-5,5',6,6'-tetrahydro-β,β-carotene-3β,3β'-diol
- all-trans-Violaxanthin
- CAS:
- 126-29-4
- MF:
- C40H56O4
- MW:
- 600.87
- Product Categories:
-
- Carotenoids
- Elisa Kit-plant ELISA Kit
- Mol File:
- 126-29-4.mol
VIOLAXANTHIN Chemical Properties
- Melting point:
- 200°
- alpha
- 20Cd +35° (c = 0.08 in chloroform)
- Boiling point:
- 570.8°C (rough estimate)
- Density
- 0.9826 (rough estimate)
- refractive index
- 1.4760 (estimate)
- storage temp.
- -70°C
- solubility
- Chloroform, Ethyl Acetate
- form
- Orange Brown Soild
- pka
- 14.56±0.70(Predicted)
- λmax
- λ: 438-442 nm Amax
- BRN
- 101269
VIOLAXANTHIN Usage And Synthesis
Uses
trans-Violaxanthin, is a Carotenoid dye. It is a natural xanthophyll pigment with an orange color found in a variety of plants including pansies. It is approved to be used as a food additive and food coloring.
Uses
Violaxanthin has been used as a standard/control in high-pressure liquid chromatography (HPLC) analysis of pigment extracts to confirm the high-level astaxanthin accumulation suspected from the visual phenotype of?Nt-AXT plants.
Definition
ChEBI: All-trans-violaxanthin is the all-trans-stereoisomer of violaxanthin. It has a role as a food colouring.
General Description
Violaxanthins are natural pigmented constituents or carotenoids present in most fruits and vegetables.
Biochem/physiol Actions
Violaxanthin is a carotene epoxide that is a precursor to capsanthin. It is one of three xanthophylls involved in the evolution of plastids of green plants (oxygen evolution) and participating in photo-induced interconversions known as the violaxanthin cycle. The cleavage of 9-cis-epoxycarotenoids (violaxanthin) to xanthoxin is the key regulatory step of abscisic acid biosynthesis.
Purification Methods
Also purify it by column chromatography, and the purity is checked by TLC (see -carotene). It has at 415, 440 and 469nm. [Kuhn & Winterstein Ber 64 326 1931, Karrer et al. max Helv Chim Acta 14 1044 1931, Absolute Config: Bartlett et al. J Chem Soc (C) 2527 1969, Beilstein 19 III/IV 1139.]
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