Product Identification

Product Name

3,4,5-Trimethoxyphenylacetic acid

Synonyms

2-(3,4,5-Trimethoxyphenyl)acetic acid
3,4,5-Trimethoxybenzeneacetic acid

CAS

951-82-6

Formula

C11H14O5

Molecular Weight

226.23

EINECS

213-456-2

Beilstein/Gmelin

2697844

Beilstein Reference

4-10-00-02031

Physical and Chemical Properties

Appearance

White crystalline powder.

Solubility in water

Very soluble

Melting Point

117 - 120

Boiling Point

352

pKa/pKb

4.23 (pKa)

Partition Coefficient

1.16

First Aid Measures

Ingestion

Get medical aid. Wash mouth out with water.

Inhalation

Remove from exposure to fresh air immediately. Get medical aid.

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.

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.

Hazards Identification

Ingestion

The toxicological properties of this substance have not been fully investigated. May be harmful if swallowed.

Inhalation

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

EC Risk Phrase

R 36/37/38

EC Safety Phrase

S 26 36

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

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

Disposal Code

4

Stability

No data.

Incompatibilities

Strong oxidizing agents.

Decomposition

Carbon monoxide, carbon dioxide.

Transport Information

HS Code

2918 90 90