Product Identification

Product Name

7-Methyl-1H-indole

Synonyms

7-Methylindole

CAS

933-67-5

Formula

C9H9N

Molecular Weight

131.16999999999999

EINECS

213-270-1

Beilstein/Gmelin

111088

Beilstein Reference

5-20-07-00081

Physical and Chemical Properties

Appearance

White to almost white flakes. With a stench.

Solubility in water

Insoluble

Melting Point

83

Boiling Point

266

Vapor Pressure

0.015 (25 C)

Density

1.0202 g/cm3 (99.6 C)

pKa/pKb

13.18 (pKb)

Partition Coefficient

2.56

Heat Of Vaporization

48.4 kJ/mol

Usage

Used in the production of agricultural chemicals and pharmaceuticals.

Refractive Index

1.576 (99.6 C)

First Aid Measures

Ingestion

Get medical aid. Wash mouth out with water.

Inhalation

Remove from exposure to fresh air immediately.

Skin

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.

Handling and Storage

Storage

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

Handling

Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Use only in a chemical fume hood.

Hazards Identification

Ingestion

The toxicological properties of this substance have not been fully investigated. May cause headache. May cause nausea and vomiting.

Inhalation

May cause respiratory tract irritation. May cause effects similar to those described for ingestion.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

EC Safety Phrase

S 22 24/25

Exposure Controls/Personal Protection

Personal Protection

Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear a chemical apron.

Respirators

A NIOSH/MSHA approved air purifying dust or mist respirator or European Standard EN 149.

Fire Fighting Measures

Flash Point

111

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.