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HomeProduct name listTRANS-2-OCTENOIC ACID

TRANS-2-OCTENOIC ACID

  • CAS NO.:1871-67-6
  • Empirical Formula: C8H14O2
  • Molecular Weight: 142.2
  • MDL number: MFCD00002706
  • EINECS: 217-491-4
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-10-30 20:13:01
TRANS-2-OCTENOIC ACID Structural

What is TRANS-2-OCTENOIC ACID?

Chemical properties

CLEAR COLOURLESS TO SLIGHTLY YELLOW LIQUID

The Uses of TRANS-2-OCTENOIC ACID

Trans-2-octenoic acid has found a little use in perfumery as a trace ingredient in artificial essential oils, etc. It has been suggested for use in flavor compositions, but at this time (Oct. 1968) it has not yet been listed as G.R.A.S. by the American authorities. It could probably be used in imitation Cheese, Butter, Nut, Butterscotch compositions, etc.

Definition

ChEBI: An olefinic fatty acid that is octanoic acid carrying a double bond at position 2 (the 2E-isomer).

Production Methods

Trans-2-octenoic acid can be produced 1) from Hexaldehyde by the Dobner reaction. 2) by regulated hydrogenation of 2-Octynoic acid.

Synthesis Reference(s)

Tetrahedron Letters, 31, p. 4719, 1990 DOI: 10.1016/S0040-4039(00)97715-3

Properties of TRANS-2-OCTENOIC ACID

Melting point: 5-6 °C (lit.)
Boiling point: 154 °C/22 mmHg (lit.)
Density  0.944 g/mL at 25 °C (lit.)
refractive index  n20/D 1.4588(lit.)
FEMA  3957 | (E)-2-OCTENOIC ACID
Flash point: >230 °F
solubility  Chloroform (Slightly), Ethyl Acetate (Slightly)
pka 4.78±0.10(Predicted)
form  clear liquid
color  Colorless to Light yellow to Light orange
Odor Relatively powerful, oily-musty odor, in dilution more fruity and pleasant, but unpleasant when undiluted
JECFA Number 1805
BRN  1721115
Stability: Light Sensitive
CAS DataBase Reference 1871-67-6(CAS DataBase Reference)
EPA Substance Registry System 2-Octenoic acid, (2E)- (1871-67-6)

Safety information for TRANS-2-OCTENOIC ACID

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
GHS Hazard Statements H314:Skin corrosion/irritation
Precautionary Statement Codes P280:Wear protective gloves/protective clothing/eye protection/face protection.
P363:Wash contaminated clothing before reuse.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405:Store locked up.

Computed Descriptors for TRANS-2-OCTENOIC ACID

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