Product Identification

Product Name

4H-3,1-Benzoxazine-2,4(1H)-dione

Synonyms

1H-3,1-Benzoxazine-2,4-dione
Isato acid anhydride
N-Carboxyanthranilic anhydride

CAS

118-48-9

Formula

C8H5NO3

Molecular Weight

163.13

EINECS

204-255-0

RTECS

DM3100000

RTECS Class

Reproductive Effector

Beilstein/Gmelin

136786

Beilstein Reference

4-27-00-03330

EC Index Number

607-250-00-5

EC Class

Irritant; Sensitising

Physical and Chemical Properties

Appearance

Prism from alcohol or glacial acetic acid; crystals from alcohol or dioxane.

Solubility in water

Slightly soluble

Melting Point

164

Boiling Point

385

Density

1.55 g/cm3

pKa/pKb

8.91 (pKa)

Partition Coefficient

.91

Usage

Intermediate for polymer curing agents, anthranilic esters, heterocyclic compd, & benzyne.

Vapor Density

5.6

First Aid Measures

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.

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

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

Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture.

Handling

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

Hazards Identification

Inhalation

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

Skin

Causes skin irritation.

Eyes

Causes eye irritation.

Ingestion

Causes gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated.

EC Risk Phrase

R 36 43

EC Safety Phrase

S 24 26 37

UN (DOT)

3335

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 gloves to prevent skin exposure. Clothing: Wear appropriate 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

Irritating to eyes, respiratory system and skin. The toxicological properties of this material have not been investigated.

Poison Class

5

Fire Fighting Measures

Autoignition

> 600

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.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation. Do not get water inside containers.

Stability and Reactivity

Disposal Code

4

Incompatibilities

Oxidizing agents.

Stability

Stable at room temperature in closed containers under normal storage and handling conditions.

Decomposition

Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Transport Information

UN Number

3335

HS Code

2934 99 90