2,4-OCTADIEN-1-AL - CAS 30361-28-5
Molecular Formula:
Molecular Weight:
Olfactive Family:
Fatty | Fruity | Green
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Odor description:
A fatty, fruity, green, citrus odor with peely notes.
Taste description:
Fatty, chicken fat, citrus.
95.0% (sum of isomers)
yellow liquid
(* Alt. CAS #) CAS: 5577-44-6; 2,4-Octadienal, 2,4-OCTADIEN-1-AL, Contains 2,4-Octadienal, (2E,4E)-, e,e-2,4-Octadienal, e-2,e-4-Octadienal, trans-2,trans-4-Octadienal; 2,4-OCTADIEN-1-AL, NO ANTIOXIDANT (special order)
Insoluble in water; soluble in alcohol.
Store tightly sealed under inert gas in a cool, well-ventilated area.
Shelf Life:
18 months from manufacture date
Boiling Point:
188.70 C (EPI 4.0)
0.871 : 0.877 at 25 deg C
Refractive index:
1.521 : 1.530 at 20 deg C
1.The effect of dissolved polyunsaturated aldehydes on microzooplankton growth rates in the Chesapeake Bay and Atlantic coastal waters.
Lavrentyev PJ1, Franzè G2, Pierson JJ3, Stoecker DK4. Mar Drugs. 2015 May 6;13(5):2834-56. doi: 10.3390/md13052834.
Allelopathy is wide spread among marine phytoplankton, including diatoms, which can produce cytotoxic secondary metabolites such as polyunsaturated aldehydes (PUA). Most studies on diatom-produced PUA have been dedicated to their inhibitory effects on reproduction and development of marine invertebrates. However, little information exists on their impact on key herbivores in the ocean, microzooplankton. This study examined the effects of dissolved 2E,4E-octadienal and 2E,4E-heptadienal on the growth rates of natural ciliate and dinoflagellate populations in the Chesapeake Bay and the coastal Atlantic waters. The overall effect of PUA on microzooplankton growth was negative, especially at the higher concentrations, but there were pronounced differences in response among common planktonic species. For example, the growth of Codonella sp., Leegaardiella sol, Prorodon sp., and Gyrodinium spirale was impaired at 2 nM, whereas Strombidium conicum, Cyclotrichium gigas, and Gymnodinium sp.
2.Differential effect of three polyunsaturated aldehydes on marine bacterial isolates.
Ribalet F1, Intertaglia L, Lebaron P, Casotti R. Aquat Toxicol. 2008 Jan 31;86(2):249-55. Epub 2007 Nov 13.
Bioactive polyunsaturated aldehydes (PUAs) are produced by several marine phytoplankton (mainly diatoms) and have been shown to have a detrimental effect on a wide variety of organisms, including phytoplankton and invertebrates. However, their potential impact on marine bacteria has been largely neglected. We assess here the effect of three PUAs produced by marine diatoms: 2E,4E-decadienal, 2E,4E-octadienal and 2E,4E-heptadienal, on the growth of 33 marine bacterial strains, including 16 strains isolated during a bloom of the PUA-producing diatom Skeletonema marinoi in the Northern Adriatic Sea. A concentration-dependent growth reduction was observed for 19 bacterial strains at concentrations ranging from 3 to 145 micromolL(-1). Surprisingly, Eudora adriatica strain MOLA358 (Flavobacteriaceae) and Alteromonas hispanica strain MOLA151 (Alteromonadaceae) showed growth stimulation upon exposure to PUAs at concentrations between 13 and 18 micromolL(-1).
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CAS 30361-28-5 2,4-OCTADIEN-1-AL

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