Melting point :>300 °C(lit.)
Boiling point :239.22°C (rough estimate)
Density :1.1426 (rough estimate)
refractive index :1.4587 (estimate)
storage temp. :Keep in dark place,Inert atmosphere,Room temperature
solubility :Water
pka :pK1:3.73(+1);pK2:10.72(0) (25°C)
form :Powder
color :White to faint pink-beige
Water Solubility :soluble
Merck :14,5189
BRN :112553
CAS DataBase Reference :498-94-2(CAS DataBase Reference)
EPA Substance Registry System :4-Piperidinecarboxylic acid (498-94-2)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P302+P352 IF ON SKIN: wash with plenty of soap and water. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P312 Call a POISON CENTER or doctor/physician if you feel unwell. P403+P233 Store in a well-ventilated place. Keep container tightly closed.