Molecular Formula: C₈H₁₆O₂
Molar mass: 144.21 g/mol
EINECS: 210-852-7
Density: 0.878 g/cm³
Flash Point: 52.4 °C
Index of Refraction: 1.412
Boiling Point: 168.7 °C at 760 mmHg
Vapour Pressure: 1.6 mmHg at 25°C
Melting point: -75 °C
Appearance: Colorless liquid with an apple-like odor
Structure of Amyl propanoate (624-54-4):

XLogP3-AA: 2.4
H-Bond Donor: 0
H-Bond Acceptor: 2
SMILES: O=C(OCCCCC)CC 
InChI: InChI=1/C8H16O2/c1-3-5-6-7-10-8(9)4-2/h3-7H2,1-2H3 
InChIKey: TWSRVQVEYJNFKQ-UHFFFAOYAA 
Std. InChI: InChI=1S/C8H16O2/c1-3-5-6-7-10-8(9)4-2/h3-7H2,1-2H3 
Std. InChIKey: TWSRVQVEYJNFKQ-UHFFFAOYSA-N

Carcinogenicity of Amyl propanoate (624-54-4) hasn't been listed as a carcinogen by NTP, IARC,ACGIH, or CA Prop 65. And its toxicological properties have not been fully investigated.

Reported in EPA TSCA Inventory.

Low toxicity by ingestion and skin contact. An eye irritant. A flammable liquid. When heated to decomposition it emits acrid smoke and irritating fumes.
 

Risk Statements:
10:  Flammable
Safety Statements:
23:  Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer)
24:  Avoid contact with skin

 Amyl propanoate (624-54-4) also can be called Propanoic acid, pentyl ester ; n-Amyl propionate ; Pentyl propanoate ; n-Pentyl propanoate and n-Pentyl propionate .It is an ester.Heat is also generated by the interaction of esters with caustic solutions.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 immediatelyfor at least 15 minutes while removing contaminated clothing. Secondly,Get shoesmedical 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 : Do not induce vomiting.If victim is conscious and alert, give 2-4 cupfuls of milk or water.If conscious drink water, then induce vomiting. If unconscious, immediately take victim to a physician and do not attempt to induce vomiting.And get medical aid immediately.
In addition, Amyl propanoate (624-54-4) can be stable under normal temperature and pressure conditions.It is not compatible with strong oxidizing agents, and you must not take it with excess heat, strong oxidants and incompatible materials.And also prevent it to broken down into hazardous decomposition products: irritating and toxic fumes and gases, carbon dioxide, carbon monoxide.