64809-43-4

Basic information

• Product Name: apo-11-astaxanthinal
• Synonyms: apo-11-astaxanthinal
• CAS NO: 64809-43-4
• Molecular Weight: 248.322
• Mol File: 64809-43-4.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: apo-11-astaxanthinal(CAS DataBase Reference)
• NIST Chemistry Reference: apo-11-astaxanthinal(64809-43-4)
• EPA Substance Registry System: apo-11-astaxanthinal(64809-43-4)

Safety Data

• Hazardous Substances Data: 64809-43-4(Hazardous Substances Data)

Upstream product

• 6153-05-5 (Z)-3-methylpent-2-en-4-ynol 
• 472-61-7 (3RS,3'RS)-Astaxanthin 
• 64809-53-6 (3-Methyl-2-penten-4-yn-1-yl)-trimethylsiylaether 
• 20107-09-9 (2S,4S)-4-acetoxy-2-bromo-2,6,6-trimethylcyclohexanone 
• 64839-18-5 (1R,5R)-3,3,5-trimethyl-4-oxocyclohexyl acetate 
• 64809-51-4 4(S)-2,6,6-trimethyl-4-[(trimethylsilyl)oxy]-cyclohex-2-en-1-one 
• 64809-50-3 (4S)-4-hydroxy-2,6,6-trimethyl-cyclohex-2-en-one 
• 64809-42-3 (Z)-5-((S)-4-Hydroxy-2,6,6-trimethyl-3-oxo-cyclohex-1-enyl)-3-methyl-pent-2-en-4-ynal 

Downstream Products

• 69297-10-5 Phenoxy-acetic acid (S)-4-((1Z,3E)-5-bromo-3-methyl-penta-1,3-dienyl)-3,5,5-trimethyl-2-oxo-cyclohex-3-enyl ester 
• 69350-54-5 Phenoxy-acetic acid (S)-4-((1Z,3E)-5-hydroxy-3-methyl-penta-1,3-dienyl)-3,5,5-trimethyl-2-oxo-cyclohex-3-enyl ester 
• 64809-44-5 Phenoxy-acetic acid (S)-3,5,5-trimethyl-4-((1E,3Z)-3-methyl-5-oxo-penta-1,3-dienyl)-2-oxo-cyclohex-3-enyl ester 
• 64839-28-7 (2E,4E)-5-[(4S)-4-Hydroxy-2,6,6-trimethyl-3-oxocyclohex-1-enyl]-3-methylpenta-2,4-dienal 

Relevant articles and documents

Analysis of palmitoyl apo-astaxanthinals, apo-astaxanthinones, and their epoxides by UHPLC-PDA-ESI-MS

Food products enriched with fatty acid-esterified xanthophylls may result in deviating dietary apo-carotenoids. Therefore, free astaxanthin and its mono- and dipalmitate esters were subjected to two degradation processes in a methanolic model system: light-accelerated autoxidation and hypochlorous acid/hypochlorite (HOCl/OCl-) bleaching. Reversed phase ultrahigh-performance liquid chromatography photodiode array with in-line electrospray ionization mass spectrometry (RP-UHPLC-PDA-ESI-MS) was used for assessment of degradation products. Apo-astaxanthinals and -astaxanthinones containing 3 (apo-9) to 10 (apo-8′) conjugated double bonds were found upon autoxidation for all three types of astaxanthin (except free apo-8′-astaxanthinal). Fragmentation of [M + H]+ and [M + Na]+ parent masses of apo-astaxanthins from dipalmitate astaxanthin indicated palmitate esterification. Astaxanthin monopalmitate degradation resulted in a mixture of free and palmitate apo-astaxanthins. HOCl/OCl- rapidly converted the astaxanthins into a mixture of epoxy-apo-9- and epoxy-apo-13-astaxanthinones. The palmitate ester bond was hardly affected by autoxidation, whereas for HOCl/OCl- the ester bond of the apo-astaxanthin palmitoyl esters was degraded.