Aspartic Acid Powder
Other Names: Aminosuccinic acid, Asparagic acid, Asparaginic acid

CAS Number: 617-45-8
Sum Formula: C₄H₇NO₄
Molar Mass: 133.10 g/mol
Appearance: White crystalline powder

Aspartic acid is a naturally occurring, proteinogenic α-amino acid with an acidic side chain. It plays an important role in various biosynthetic pathways and is extensively used in chemical synthesis, materials science, and analytical chemistry.

Chemical and Physical Properties
Density: ~1.66 g/cm³
Melting Point: ~270°C (decomposes)
Boiling Point: Not applicable (decomposes)
Solubility in Water: Moderately soluble (~5.8 g/L at 25°C)
Solubility in Other Solvents: Slightly soluble in alcohol; practically insoluble in ether and chloroform
Odor: Odorless

Applications
Peptide Synthesis: Used as a building block for the synthesis of peptides and proteins.
Organic Synthesis: Intermediate in the preparation of various nitrogen-containing compounds.
Polymer and Material Science: Investigated for incorporation into biodegradable polymers and coatings.
Analytical Chemistry: Employed as a standard in amino acid analysis and chromatography.
Coordination Chemistry: Used as a ligand in complex formation with metals for catalytic and structural studies.

Safety

This chemical does not meet GHS hazard criteria for 97.9% (138 of 141) of all reports.

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