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Substance Name: Violaxanthin
RN: 126-29-4
UNII: 51C926029A
InChIKey: SZCBXWMUOPQSOX-WVJDLNGLSA-N

Note

  • A carotene epoxide that is precursor to capsanthin; one of 3 xanthophylls involved in evolution of plastids of green plants (oxygen evolution); 3 (violaxanthin, zeaxanthin & antheraxanthin) participate in series of photo-induced interconversions known as ''violaxanthin cycle''; cleavage of 9-cis-epoxycarotenoids (violaxanthin) to xanthoxin, catalyzed by 9-cis-epoxycarotenoid dioxygenase, is the key regulatory step of ABSCISIC ACID biosynthesis.

Molecular Weight

  • 600.878
 
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Names and Synonyms

Name of Substance

  • Violaxanthin

Synonyms

  • 5,6:5',6'-Diepoxy-5,5',6,6'-tetrahydro-beta-carotene-3,3'-diol
  • UNII-51C926029A
  • Zeaxanthin diepoxide

Systematic Name

  • (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

Registry Numbers

CAS Registry Number

  • 126-29-4

FDA UNII

  • 51C926029A

System Generated Number

  • 0000126294

Structure Descriptors

InChI

1S/C40H56O4/c1-29(17-13-19-31(3)21-23-39-35(5,6)25-33(41)27-37(39,9)43-39)15-11-12-16-30(2)18-14-20-32(4)22-24-40-36(7,8)26-34(42)28-38(40,10)44-40/h11-24,33-34,41-42H,25-28H2,1-10H3/b12-11+,17-13+,18-14+,23-21+,24-22+,29-15+,30-16+,31-19+,32-20+/t33-,34-,37+,38+,39-,40-/m0/s1

InChIKey

SZCBXWMUOPQSOX-WVJDLNGLSA-N

Smiles

C1[C@@H](C[C@]2(O[C@@]2(C1(C)C)\C=C\C(=C\C=C\C(=C\C=C\C=C(\C=C\C=C(\C=C\[C@@]12[C@](C[C@H](CC1(C)C)O)(C)O2)C)C)C)C)C)O

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 208 deg C   EXP
log P (octanol-water) 11.98 (none)   EST
Atmospheric OH Rate Constant 6.55E-10 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.