ADRENIC ACID Property

Boiling point:

161-164.5 °C(Press: 0.07 Torr)

Density 

0.9220 g/cm3

storage temp. 

−20°C

solubility 

Chloroform (Sparingly), Methanol (Slightly)

pka

4.76±0.10(Predicted)

form 

Oil

color 

Colourless

Stability:

Light Sensitive

Safety

WGK Germany 

3

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.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P242Use only non-sparking tools.

P243Take precautionary measures against static discharge.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

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

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

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.

P370+P378In case of fire: Use … for extinction.

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

P501Dispose of contents/container to..…

ADRENIC ACID Chemical Properties,Usage,Production

Description

Adrenic acid is a naturally occurring polyunsaturated fatty acid (PUFA) formed through a 2-carbon chain elongation of arachidonic acid. It is present in the adrenal glands, brain, testis, and kidney. Although there is trace metabolism of adrenic acid in the forebrain, the renal medulla is the only tissue which readily metabolizes the acid through cyclooxygenase activity. The primary metabolite of adrenic acid in the rabbit kidney is 1a,1b-dihomo prostaglandin E₂.

Chemical Properties

Docosa tetra enoic acid designates any straight chain 22:4 fatty acid.
One isomer is of particular interest :
all-cis-7,10,13,16-docosa tetra enoic acid is an ω-6 fatty acid with the trivial name adrenic acid. This is a naturally occurring polyunsaturated fatty acid formed through a 2-carbon chain elongation of arachidonic acid. It is one of the most abundant fatty acids in the early human brain.

Uses

Adrenic acid is considered a sort of storage form of arachidnoic acid because it can be retro-converted into arachidonic acid by enzymes. Arachidonic acid is relatively abundant especially in the phospholipids that are found in cellular membranes, and it is precursor for many hormone-like signaling molecules, e.g. prostaglandins and leukotrienes. It shall be liberated from the phospholipids by phospholipase enzymes before it can be converted into these signaling molecules. Omnivorous humans also consume small amounts of arachidonic acid with the diet, since arachidonic acid is found in small amounts in all animal products. Arachidonic acid is not found in higher plants. Arachidonic acid serves many important functions in the body, e.g. as a structural element in membrane phospholipids, and as precursor for signalling.

Uses

cis-7,10,13,16-Docosatetraenoic Acid has been identified as a protein kinase inhibitor, affecting serotonin levels in studies.

Definition

ChEBI: All-cis-docosa-7,10,13,16-tetraenoic acid is the all-cis-isomer of a C22 polyunsaturated fatty acid having four double bonds in the 7-, 10-, 13- and 16-positions. One of the most abundant fatty acids in the early human brain. It has a role as a human metabolite and an algal metabolite. It is a docosatetraenoic acid and an omega-6 fatty acid. It is a conjugate acid of an all-cis-docosa-7,10,13,16-tetraenoate.

Enzyme inhibitor

This long-chain, unsaturated fatty acid (FWfree-acid = 332.53 g/mol; CAS 28874-58-0), also known as adrenic acid and (7Z,10Z,13Z,16Z)- docosatetraenoic acid, inhibits arachidonyl-CoA synthetase, orarachidonate:CoA ligase and prostaglandin biosynthesis.