Product Identification

Product Name

5-Methoxy-2-methylaniline

Synonyms

2-Methyl-5-methoxyaniline
3-Amino-4-methylanisole
3-Methoxy-6-methylaniline
6-Methyl-m-anisidine
Benzenamine, 5-methoxy-2-methyl-
NSC 229308

CAS

50868-72-9

Formula

C8H11NO

Molecular Weight

137.18

EINECS

256-816-4

Physical and Chemical Properties

Solubility in water

10 g/L (25 C)

Melting Point

47

Boiling Point

253

Vapor Pressure

0.02 (25 C)

Density

1.39 g/cm3 (25 C)

pKa/pKb

9.97 (pKb)

Partition Coefficient

1.3

Heat Of Vaporization

48.95 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

Material is irritating to mucous membranes and upper respiratory tract. Harmful if inhaled.

Skin

Causes skin irritation. Harmful if absorbed through skin.

Eyes

Causes irritation.

Ingestion

Harmful if swallowed.

Hazards

Emits toxic fumes under fire conditions.

EC Risk Phrase

20/21/22 36/37/38

EC Safety Phrase

26 37/39

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

Absorption into the body leads to the formation of methemoglobin which in sufficient concentration causes cyanosis. Onset may be delayed 2 to 4 hours or longer.

Fire Fighting Measures

Flash Point

116

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

Carbon monoxide, Carbon dioxide, Nitrogen oxides.