DOMOIC ACID Property

Melting point:

213-217℃

Boiling point:

451.38°C (rough estimate)

Density 

1.1800 (rough estimate)

refractive index 

1.5130 (estimate)

storage temp. 

-20°C

solubility 

methanol: 0.6 mg/mL

form 

solid

pka

2.08±0.60(Predicted)

color 

white

optical activity

-109.612 (H2O)

Water Solubility 

Soluble in water at 8mg/ml. Soluble in methanol at 0.6mg/ml.

Merck 

13,3451

BRN 

46376

Stability:

Light Sensitive

EPA Substance Registry System

Domoic acid (14277-97-5)

Safety

Hazard Codes 

Xn

Risk Statements 

20/21/22

Safety Statements 

36/37

WGK Germany 

3

RTECS 

UX9665100

Hazardous Substances Data

14277-97-5(Hazardous Substances Data)

Toxicity

An excitory amino acid isolated from the red alga Chondria armata. A structural analog of kainic acid and domoic acid has been shown to be responsible for the shellfish poisoning associated with eating certain cultured blue mussels.

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H302Harmful if swallowed

H370Causes damage to organs

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P405Store locked up.

DOMOIC ACID Chemical Properties,Usage,Production

Chemical Properties

Off-White Solid

Uses

Labelled Domoic Acid. Domoic Acid is an excitatory amino acid isolated from the red alga Chondria armata Okamura, Rhodomelaceae. Domoic acid shown to be responsible for amnesic shellfish poisoning ass ociated with ingestion of certain cultured blue mussels. Domoic Acid is a structural analog of Kainic acid (K135000).

Uses

Domoic Acid is an excitatory amino acid isolated from the red alga Chondria armata Okamura, Rhodomelaceae. Domoic acid shown to be responsible for amnesic shellfish poisoning associated with ingestion of certain cultured blue mussels. Domoic acid is a structural analog of Kainic acid (K135000). DA. EU regulated marine toxin.

Uses

Domoic acid has been used:

• as an excitatory neurotoxin to determine brain transcriptional response
• to study its cytotoxic, genotoxic and immunotoxic effects on the marine mussel M. edulis
• to study its neurobehavioral effects on mouse fetuses

Definition

ChEBI: A L-proline derivative that is L-proline substituted by a carboxymethyl group at position 3 and a 6-carboxyhepta-2,4-dien-2-yl group at position 4. It is an analog of kainic acid and is the neurotoxin associated with the a nesic shellfish poisoning (ASP).

General Description

Domoic acid, a heterocyclic amino acid neurotoxin is synthesized by various marine algaes. It possess some structural similarity to kainic acid.

Biological Activity

More potent and possibly more selective than kainate at kainate receptors, as demonstrated in electrophysiological studies.

Biochem/physiol Actions

Domoic acid is a potent agonist at receptors for excitatory amino acids glutamate and kainate. It has highest affinity for AMPA/kainate receptor of any kainate agonist. It can causes excessive excitation of neurons leading to depletion of energy stores.

Purification Methods

Domoic acid (~300 mg) is purifed on a Dowex1 column (3.5 x 40 mm, 200-400 mesh, acetate form), washed with H2O until neutral, then eluted with increasing concentrations of AcOH (8L) from 0 to 0.25M. The fraction containing domoic acid (in 50mL) is collected, evaporated to dryness under reduced pressure and recrystallised from aqueous EtOH. It is a glutamate and a Kainate receptor agonist. [Impellizzeri et al. Phytochemistry 14 1549 1975, Takemoto & Diago Arch Pharm 293 627 1960, Beilstein 22/4 V 371.]