Melting point :187-189 °C(lit.)
Boiling point :251.96°C (rough estimate)
bulk density :200kg/m3
Density :1.374 g/mL at 25 °C(lit.)
vapor pressure :0Pa at 25℃
refractive index :1.5323 (estimate)
Flash point :250 °C
storage temp. :2-8°C
solubility :95% ethanol: soluble5%, clear to slightly hazy, colorless to yellow
form :Crystalline Powder
pka :2.50, 4.87(at 25℃)
color :White to light yellow
Odor :Odorless
PH Range :3.5
PH :3.5 (5g/l, H2O, 20℃)
biological source :synthetic (organic)
Water Solubility :4.7 g/L (20 ºC)
Specific Heat Capacity :Cp(crystal): 1.3 J/(g·K), at 25℃
Sensitive :Air & Light Sensitive
Merck :14,423
BRN :471605
Henry's Law Constant :6.6×10⁴ mol/(m³Pa) at 25℃, HSDB (2015)
Stability :Stable. Incompatible with strong oxidizing agents. Combustible. Sensitive to light and air. May discolour on exposure to light.
Major Application :peptide synthesis
Cosmetics Ingredients Functions :LIGHT STABILIZER
UV ABSORBER InChI :1S/C7H7NO2/c8-6-3-1-5(2-4-6)7(9)10/h1-4H,8H2,(H,9,10)
InChIKey :ALYNCZNDIQEVRV-UHFFFAOYSA-N
SMILES :Nc1ccc(cc1)C(O)=O
LogP :0.96 at 25℃
CAS DataBase Reference :150-13-0(CAS DataBase Reference)
IARC :3 (Vol. 16, Sup 7) 1987
NIST Chemistry Reference :p-Aminobenzoic acid(150-13-0)
EPA Substance Registry System :p-Aminobenzoic acid (150-13-0)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:	P273 Avoid release to the environment. P501 Dispose of contents/container to..…