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

CAS Number: 1118-68-9
Sum Formula: C₄H₉NO₂ · HCl
Molar Mass: 139.58 g/mol (for the hydrochloride salt)

(Note: The free base Dimethylglycine has a molar mass of 103.12 g/mol. The hydrochloride form, which you specified, includes an additional HCl unit.)

Appearance: White crystalline powder

Dimethylglycine hydrochloride is the hydrochloride salt of dimethylglycine, a derivative of the amino acid glycine in which the amino group is substituted with two methyl groups. It is used in chemical, biochemical, and material science applications requiring a stable, water-soluble, tertiary amine-containing building block.

Chemical and Physical Properties
Density: ~1.2 g/cm³ (estimated)
Melting Point: 178–180°C (decomposes)
Boiling Point: Not applicable (decomposes)
Solubility in Water: Freely soluble
Solubility in Other Solvents: Slightly soluble in alcohol; practically insoluble in nonpolar solvents
Odor: Odorless

Applications
Organic Synthesis: Used as an intermediate in the preparation of N-alkylated amino acid derivatives.
Coordination Chemistry: Serves as a ligand precursor for metal complexation studies.
Polymer Chemistry: Investigated for incorporation into polymers and resins for introducing polar functionality.
Biochemical Research: Studied for its role in one-carbon metabolism and tertiary amine chemistry.
Analytical Chemistry: Employed in derivatization reactions and as a reference standard for tertiary amine detection.

Safety

Signal Word: Warning

Handling and Storage
Storage Conditions: Store in a tightly closed container in a cool, dry, and well-ventilated area. Protect from moisture and strong oxidizing agents.
Handling Precautions: Avoid dust formation and direct contact with eyes or skin. Use standard PPE and good laboratory practices.