Product Identification

Product Name

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

Synonyms

1-(Phenylmethyl)pyrrole-2,5-dione
1-Benzyl-1H-pyrrole-2,5-dione
1H-Pyrrole-2,5-dione, 1-(phenylmethyl)-

CAS

1631-26-1

Formula

C11H9NO2

Molecular Weight

187.19

EINECS

216-631-1

Beilstein/Gmelin

135801

Beilstein Reference

4-21-00-04633

Physical and Chemical Properties

Appearance

Solid.

Solubility in water

0.60 g/L (25 C)

Melting Point

70-72

Boiling Point

339

Vapor Pressure

.000096

Density

1.296 g/cm3 (20 C)

pKa/pKb

16.21 (pKb)

Partition Coefficient

1.78

Heat Of Vaporization

58.21 kJ/mol

First Aid Measures

Ingestion

Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.

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 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

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

Handling

Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.

Hazards Identification

Ingestion

Causes gastrointestinal tract burns. The toxicological properties of this substance have not been fully investigated. Depletes calcium levels in the body which if left untreated can lead to hypocalcemia and

Inhalation

Causes chemical burns to the respiratory tract. The toxicological properties of this substance have not been fully investigated. Depletes calcium levels in the body which if left untreated can lead to hypocalcemia and death.

Skin

Causes skin burns. Initial contact may be painless but will penetrate tissue causing severe necrosis and bone destruction.

Eyes

Causes eye burns.

EC Risk Phrase

R 34

EC Safety Phrase

S 26 36/37/39 45

UN (DOT)

1759

Exposure Controls/Personal Protection

Personal Protection

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.

Fire Fighting Measures

Flash Point

157

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

No data.

Incompatibilities

Strong oxidizing agents.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide.

Transport Information

UN Number

1759