TRANS-11-OCTADECENOIC ACID Chemical Properties

Melting point:

44℃

Boiling point:

397.91°C (estimate)

Density 

0.8563

refractive index 

1.4472 (589.3 nm 50℃)

Flash point:

113 °C

storage temp. 

Sealed in dry,Store in freezer, under -20°C

solubility 

Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)

pka

4.78±0.10(Predicted)

form 

Liquid

color 

Clear Colourless

Merck 

13,9965

CAS DataBase Reference

693-72-1(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

WGK Germany 

1

MSDS

• Language:English Provider:SigmaAldrich

TRANS-11-OCTADECENOIC ACID Usage And Synthesis

Uses

Vaccenic Acid is a fatty acid found in Artemia salina that shows antimicrobial activity against a variety of microorganisms except Escherichia coli, Micrococcus luteus and Salmonella enteritidis.

Definition

ChEBI: Vaccenic acid is an octadecenoic acid having a double bond at position 11; and which can occur in cis- or trans- configurations. It is an octadecenoic acid and a straight-chain fatty acid. It is a conjugate acid of a vaccenate(1-).

Purification Methods

Crystallise the acid from acetone (m 45-45.5o) or aqueous MeOH (m 43.5-43.7o). The methyl ester has b 174-175o/5mm. [B.eseken & Hoagland Rec Trav Chim, Pays Bas 46 632 1927, Ahmad et al. J Am Chem Soc 70 3391 1948, IR: Rao & Daubert J Am Chem Soc 70 1102 1948.]

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