Product Identification

Product Name

1-Phenyl-1H-pyrrole-2,5-dione

Synonyms

1-Phenyl-1H-pyrrole-2,5-dione
Imilex P
Maleanil
Maleimidobenzene
N-Phenylmaleic acid imide
N-Phenylmaleic imide

CAS

941-69-5

Formula

C10H7NO2

Molecular Weight

173.17

EINECS

213-382-0

RTECS

ON5950000

RTECS Class

Agricultural Chemical and Pesticide; Primary Irritant

Merck

12,7452

Beilstein/Gmelin

125098

Beilstein Reference

5-21-10-00009

EC Class

toxic

Physical and Chemical Properties

Appearance

Yellow needles.

Solubility in water

Slightly soluble

Melting Point

84 - 86

Boiling Point

299

Vapor Pressure

0.0012 (25 C)

Partition Coefficient

.82

Heat Of Vaporization

53.9 kJ/mol

Usage

Dienophile in the diels-alder reaction.

First Aid Measures

Ingestion

Never give anything by mouth to an unconscious person. Get medical aid immediately. 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 breathing is difficult, give oxygen. Get medical aid. Do not use mouth-to-mouth respiration if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.

Skin

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

Eyes

Immediately 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

Keep containers tightly closed. Store in a cool, dry area away from incompatible substances.

Handling

Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Do not ingest or inhale. Use only in a chemical fume hood. Do not breathe dust or fumes.

Hazards Identification

Ingestion

Harmful if swallowed. Causes gastrointestinal irritation with nausea, vomiting and diarrhea.

Inhalation

Causes irritation of the mucous membrane and upper respiratory tract.

Skin

Causes skin irritation.

Eyes

Causes eye irritation.

Hazards

Contact with metals may evolve flammable hydrogen gas.

EC Risk Phrase

R 25

EC Safety Phrase

S 22 36/37 45

UN (DOT)

2811

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 and clothing 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.

Fire Fighting Measures

Flash Point

137

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. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Fire Potential

This material is probably combustible.

Accidental Release Measures

Small spills/leaks

Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, strong bases.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide.

Combustion Products

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

Transport Information

UN Number

2811

Hazard Class

6.1

Packing Group

I; II; III

HS Code

2925 19 95