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4-Aminobenzoic acid Structure

4-Aminobenzoic acid

Chemical Properties

Melting point 187-189 °C(lit.)
Boiling point 251.96°C (rough estimate)
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℃)
Water Solubility  4.7 g/L (20 ºC)
Sensitive  Air & Light Sensitive
Merck  14,423
BRN  471605
Stability Stable. Incompatible with strong oxidizing agents. Combustible. Sensitive to light and air. May discolour on exposure to light.
InChIKey ALYNCZNDIQEVRV-UHFFFAOYSA-N
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)

Safety Information

Hazard Codes  Xn,Xi
Risk Statements  22-36/37/38-43
Safety Statements  26-36-37/39
WGK Germany  3
RTECS  DG1400000
TSCA  Yes
HS Code  29224995
Hazardous Substances Data 150-13-0(Hazardous Substances Data)
Toxicity LD50 in mice, rats (g/kg): 2.85, >6.0 orally (Scott, Robbins); LD50 in rabbits (g/kg): 2.0 i.v. (Richards); 1.83 orally (Cronheim)

MSDS

Usage And Synthesis

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