Product Identification

Product Name

8-Anilino-1-naphthalenesulfonic acid

Synonyms

1-(Phenylamino)-8-naphthalenesulfonic acid
8-(Phenylamino)-1-naphthalenesulfonic acid
8-(Phenylamino)naphthalene-1-sulfonic acid
8-Anilino-1-naphthalenesulfonic acid
8-Anilinonaphthalene-1-sulfonic acid

CAS

82-76-8

Formula

C16H13NO3S

Molecular Weight

299.35000000000002

EINECS

201-438-7

Merck

12,699

Beilstein/Gmelin

1843887

Beilstein Reference

3-14-00-02246

Physical and Chemical Properties

Appearance

Green gray solid.

Solubility in water

Soluble

Melting Point

215

pKa/pKb

0.37 (pKa)

Partition Coefficient

3.65

Usage

Fluorescent probe.

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid. Wash mouth out with water.

Inhalation

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

Skin

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

Eyes

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

Handling and Storage

Storage

Store in a cool, dry place. Store in a tightly closed container.

Handling

Wash thoroughly after handling. Avoid contact with skin and eyes. Avoid ingestion and inhalation. Use only in a chemical fume hood.

Hazards Identification

Inhalation

Causes respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. May cause narcotic effects in high concentration. Exposure to similar compounds has caused weight loss, blood changes, and lung damage.

Skin

Causes skin irritation. Similar compounds have been shown to cause hypersensitivity to light and acne.

Eyes

Causes eye irritation.

Ingestion

May cause central nervous system depression, kidney damage, and liver damage. The toxicological properties of this substance have not been fully investigated. May be harmful if swallowed. Ingestion of anilinonaphthalene, a similar compound, causes acute vascular changes in the liver, lungs and brain as a result of venous congestion.

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

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Exposure Effects

May cause liver and kidney damage.

Fire Fighting Measures

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, strong bases.

Decomposition

Carbon monoxide, oxides of nitrogen, oxides of sulfur, carbon dioxide.