Product Identification

Product Name

Icosa-5,8,11,14-tetraenoic acid

Synonyms

(5Z,8Z,11Z,14Z)-Icosa-5,8,11,14-tetraenoic acid
5,8,11,14-Eicosatetraenoic acid, (5Z,8Z,11Z,14Z)-
5,8,11,14-Eicosatetraenoic acid, (all-trans)
5Z,8Z,11Z,14Z-Eicosatetraenoic acid
Hydrazinecarboselenoamide

CAS

21198-79-8

CAS

506-32-1

Formula

C20H32O2

Formula

CH5N3Se

Molecular Weight

304.47000000000003

Molecular Weight

138.03

EINECS

244-266-8

EINECS

208-033-4

RTECS

CE6675000

RTECS Class

Drug; Mutagen; Reproductive Effector; Natural Product

Merck

12,803

Beilstein/Gmelin

1713889

Beilstein/Gmelin

506321

Beilstein Reference

3-10-00-01641

Beilstein Reference

4-03-00-00435

Physical and Chemical Properties

Appearance

Clear, light yellow liquid.

Appearance

Solid.

Solubility in water

Insoluble.

Melting Point

189 - 191

Melting Point

49

Boiling Point

407

Vapor Pressure

9E-9 (25 C)

Density

0.9245 g/cm3 (20 C)

pKa/pKb

4.77 (pKa)

Partition Coefficient

7.27

Heat Of Vaporization

72.3 kJ/mol

Usage

One of the essential fatty acids required by most mammals.

Vapor Density

10.5

Refractive Index

1.487 (20 C)

First Aid Measures

Ingestion

May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.

Ingestion

Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Inhalation

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.

Skin

May cause skin irritation.

Skin

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.

Eyes

May cause eye irritation.

Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Deep freeze (below -20 C). Do not expose to air. Store protected from moisture. Store protected from light. Store under an inert atmosphere.

Storage

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from metals. Store protected from moisture. Store protected from light.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Store protected from light. Do not allow contact with water. Keep from contact with moist air and steam.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Store protected from light. Handle under an inert atmosphere. Store protected from air. Do not allow contact with water. Keep from contact with moist air and steam.

Hazards Identification

Inhalation

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

Ingestion

May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.

UN (DOT)

3283

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.

Exposure Effects

Chronic selenium poisoning is characterized by loss of hair and nails, skin lesions, and abnormalities of the nervous system.

Exposure Effects

The toxological properties of this substance have not been fully investigated.

Fire Fighting Measures

Flash Point

72

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Containers may explode when heated. Extinguishing media: Use agent most appropriate to extinguish fire. Do NOT get water inside containers. Cool containers with flooding quantities of water until well after fire is out. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire. Do NOT get water inside containers. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Fire Potential

Non-Combustible

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Provide ventilation. Place under an inert atmosphere. Do not get water inside containers.

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation. Do not get water inside containers.

Stability and Reactivity

Incompatibilities

Air, moisture, strong oxidizing agents.

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, moisture.

Decomposition

Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, selenium/selenium oxides.

Decomposition

Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

3283

Hazard Class

6.1

Packing Group

I; II; III