Dimethylglycine
Other Names: N,N-Dimethylglycine, (Dimethylamino)acetic acid

CAS Number: 1118-68-9
Sum Formula: C₄H₉NO₂
Molar Mass: 103.12 g/mol
Appearance: White crystalline powder

Dimethylglycine (DMG) is a tertiary amine and a derivative of glycine in which the nitrogen atom is substituted with two methyl groups. It is widely used in organic synthesis, coordination chemistry, and technical formulations that require small polar amine-containing molecules.

Chemical and Physical Properties
Density: ~1.13 g/cm³ (estimated)
Melting Point: 178–180°C
Boiling Point: Decomposes before boiling
Solubility in Water: Freely soluble
Solubility in Other Solvents: Soluble in alcohol; practically insoluble in nonpolar solvents
Odor: Odorless or faint characteristic

Applications
Organic Synthesis: Intermediate for preparing N-methylated amino acids and tertiary amine compounds.
Coordination Chemistry: Used in metal-complex formation studies due to its amino and carboxylate functionalities.
Polymer Science: Investigated for modifying polymer surfaces or backbones with polar functional groups.
Analytical Chemistry: Applied in derivatization procedures and as a reagent for amine detection.
Material Science: Explored for use in bio-based and functional polymeric materials.

Safety

Signal Word: Warning

Handling and Storage
Storage Conditions: Store in a tightly closed container in a cool, dry, and well-ventilated place. Protect from moisture and incompatible materials such as strong oxidizers.
Handling Precautions: Avoid dust formation. Use appropriate PPE and follow good industrial and laboratory practices.