Product Identification

Product Name

3,4-Dihydro-2(1H)-quinolinone

Synonyms

1,2,3,4-Tetrahydro-2(1H)-quinolinone
1,2,3,4-Tetrahydro-2-oxoquinoline
3,4-Dihydro-2-quinolinone
3,4-Dihydrocarbostyril
Hydrocarbostyril
o-Aminohydrocinnamic acid lactam

CAS

553-03-7

Formula

C9H9NO

Molecular Weight

147.18

Merck

13,4800

Physical and Chemical Properties

Solubility in water

2.1 g/L (25 C)

Melting Point

165 - 167

Boiling Point

328

Vapor Pressure

0.0002 (25 C)

Density

1.14 g/cm3 (20 C)

pKa/pKb

14.76 (pKa)

Partition Coefficient

1.58

Heat Of Vaporization

57.04 kJ/mol

First Aid Measures

Ingestion

If swallowed, wash out mouth with water provided person is conscious. Call a physician.

Inhalation

If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.

Skin

In case of contact, immediately wash skin with soap and copious amounts of water. Remove contaminated clothing and shoes. Call a physician.

Eyes

In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Handling and Storage

Storage

Keep container tightly closed.

Hazards Identification

Inhalation

May be harmful if inhaled. Material is irritating to mucous membranes and upper respiratory tract.

Skin

Causes skin irritation. May be harmful if absorbed through the skin. May cause allergic skin reaction.

Eyes

Causes irritation.

Ingestion

Harmful if swallowed.

Hazards

Emits toxic fumes under fire conditions.

EC Risk Phrase

22 36/37/38 43

EC Safety Phrase

26 36/37

Exposure Controls/Personal Protection

Personal Protection

Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.

Respirators

Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Where risk assessment shows air-purifying respirators are appropriate use a dust mask type N95 (US) or type P1 (EN 143) respirator.

Exposure Effects

Target organs: eyes, kidneys, liver, heart can central nervous system. Possibly carcinogenic.

Fire Fighting Measures

Flash Point

189

Fire Fighting

Extinguish with water spray, carbon dioxide, dry chemical powder or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.

Accidental Release Measures

Small spills/leaks

Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.

Stability and Reactivity

Incompatibilities

Oxidizing agents.

Stability

Stable at normal temperatures and pressures.

Decomposition

Oxides of carbon and nitrogen.