Product Identification

Product Name

3,4-Dihydro-7-methoxy-2(1H)-naphthalenone

Synonyms

2(1H)-Naphthalenone, 3,4-dihydro-7-methoxy-
7-Methoxy-1,2,3,4-tetrahydronaphthalen-2-one
7-Methoxy-3,4-dihydro-1H-naphthalen-2-one

CAS

4133-34-0

Formula

C11H12O2

Molecular Weight

176.21

EINECS

223-954-1

Beilstein/Gmelin

1953198

Beilstein Reference

4-08-00-00907

Physical and Chemical Properties

Appearance

White to off-white liquid.

Solubility in water

Slightly soluble

Melting Point

27 - 28

Boiling Point

307

Vapor Pressure

0.0008 (25 C)

Density

1.13 g/cm3

Partition Coefficient

1.64

Heat Of Vaporization

54.7 kJ/mol

Refractive Index

1.5589 (24 C)

First Aid Measures

Ingestion

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

Inhalation

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

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. Refrigerator (approx 4 C).

Handling

Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.

Hazards Identification

Ingestion

No information found.

Inhalation

May cause respiratory tract irritation.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

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 gloves 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

150

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

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

Carbon monoxide, carbon dioxide.