Empirical Formula: C₄H₇NO₂
Molecular Weight: 101.1039
Index of Refraction: 1.568
Density: 1.414 g/cm³
Flash Point: 92.2 °C
Enthalpy of Vaporization: 51.28 kJ/mol
Boiling Point: 228.9 °C at 760 mmHg
Vapour Pressure: 0.0256 mmHg at 25 °C
Melting point: 229-231 °C(lit.)
Storage tempreture: Store at 0 °C
Appearance: Crystalline
Structure of 1-Aminocyclopropanecarboxylic acid (CAS NO.22059-21-8):
                          
IUPAC Name: 1-Aminocyclopropane-1-carboxylic acid
Canonical SMILES: C1CC1(C(=O)O)N
InChI: InChI=1S/C4H7NO2/c5-4(1-2-4)3(6)7/h1-2,5H2,(H,6,7)
InChIKey: PAJPWUMXBYXFCZ-UHFFFAOYSA-N
Product Category of 1-Aminocyclopropanecarboxylic acid (CAS NO.22059-21-8): Amino Acids and Derivatives;Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts;Cyclopropanes;Simple 3-Membered Ring Compounds;Peptide;Miscellaneous Reagents;Neurochemicals

  1-Aminocyclopropanecarboxylic acid (CAS NO.22059-21-8) can be used as an NMDA agonist acting at the glycine site.

Hazard Codes: Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36-37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing. 
S37/39:Wear suitable gloves and eye/face protection.

 1-Aminocyclopropanecarboxylic acid , its cas register number is 22059-21-8. It also can be called 1-Aminocyclopropane-1-carboxylic acid ; 1-Amino-1-cyclopropanecarboxylic acid ; and alpha-Aminocyclopropane carboxylic acid . It is hazardous, so the first aid measures and others should be known. Such as: When on the skin: first, should flush skin with plenty of water immediately for at least 15 minutes while removing contaminated clothing. Secondly, get medical aid. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Then get medical aid soon. While, it's inhaled: Remove from exposure and move to fresh air immediately. Give artificial respiration while not breathing. When breathing is difficult, give oxygen. And as soon as to get medical aid. Then you have the ingesting of the product: Wash mouth out with water, and get medical aid immediately.
In addition, 1-Aminocyclopropanecarboxylic acid (CAS NO.22059-21-8) could be exposured to moist air or water. It is not compatible with strong oxidizing agents, and you must not take it with incompatible materials. And also prevent it to broken down into hazardous decomposition products: Nitrogen oxides, carbon monoxide, carbon dioxide.