Mead acid Property

Boiling point:

440.0±24.0 °C(Predicted)

Density 

0.917±0.06 g/cm3(Predicted)

Flash point:

14℃

storage temp. 

−20°C

solubility 

0.1 M Na2CO3: 1.7 mg/ml; DMF: 100 mg/ml; DMSO: 100 mg/ml; Ethanol: Miscible

form 

Colorless oil.

pka

4.75±0.10(Predicted)

color 

Colorless to light yellow

Safety

Hazard Codes 

F,Xi

Risk Statements 

11-36/37/38

Safety Statements 

16-26-36-7

RIDADR 

UN 1170 3/PG 2

WGK Germany 

3

F 

8-10-23

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H319Causes serious eye irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P337+P313IF eye irritation persists: Get medical advice/attention.

P403+P235Store in a well-ventilated place. Keep cool.

Mead acid Chemical Properties,Usage,Production

Description

Mead acid is an omega-9 fatty acid, first characterized by James F. Mead. Like some other omega-9 polyunsaturated fatty acids animals can make Mead acid de novo. Its elevated presence in the blood is an indication of essential fatty acid deficiency . Mead acid is found in large quantities in cartilage.

Chemical Properties

Mead acid, also referred to as eicosatrienoic acid, is chemically a carboxylic acid with a 20-carbon chain and three methyleneinterrupted cis double bonds. The first double bond is located at the ninth carbon from the omega end. In physiological literature, it is given the name 20:3(n-9) b. Mead acid can form various hydroxy (HETE) and hydoperoxy (HpETE) products .

Uses

Mead Acid (20:3, n-9) is a precursor in biosynthesis of prostaglandins, thromboxanes and leukotrienes - anti-inflammatory.

Definition

ChEBI: An icosatrienoic acid with three cis-double bonds at positions 5, 8 and 11.