Product Identification
【Product Name】3-(Dimethylamino)benzoic acid
【Synonyms】m-(Dimethylamino)benzoic acid；间二甲氨基苯甲酸
【CAS】99-64-9
【Formula】C9H11NO2
【Molecular Weight】165.19
【EINECS】202-775-2
【Beilstein/Gmelin】2208586
【Beilstein Reference】4-14-00-01096

Physical and Chemical Properties
【Appearance】Slightly beige.
【Solubility in water】Very soluble
【Melting Point】149-152℃
【Boiling Point】298℃
【Density】1.26 g/cm3
【pKa/pKb】3.23 (pKa)
【Partition Coefficient】1.88

First Aid Measures
【Ingestion】Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or 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】Immediately 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. Keep container closed when not in use.
【Handling】Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Exposure Controls/Personal Protection
【Personal Protection】Eyes: Wear safety glasses and chemical ggles if splashing is possible. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
【Respirators】Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
【Exposure Effects】The toxicological properties of this material have not been investigated.

Fire Fighting Measures
【Fire Fighting】Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Accidental Release Measures
【Small spills/leaks】Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal.

Stability and Reactivity
【Disposal Code】4
【Stability】Stable under normal temperatures and pressures.
【Incompatibilities】Strong oxidizing agents.
【Decomposition】Irritating and toxic fumes and gases.

Transport Information
【HS Code】2922 49 95

Hazards Identification
【EC Safety Phrase】S 22 24/25