Melting point :-23 °C (lit.)
Boiling point :131 °C (lit.)
Density :0.967 g/mL at 25 °C (lit.)
vapor density :2.31 (vs air)
vapor pressure :8.7 hPa (20 °C)
FEMA :3386 | PYRROLE
refractive index :n20/D 1.508(lit.)
Flash point :92 °F
storage temp. :Store at +2°C to +8°C.
solubility :60g/l
pka :15(at 25℃)
form :Liquid
color :Clear almost colorless to brownish
PH :>6 (10g/l, H2O, 20℃)
Odor :at 0.10 % in propylene glycol. sweet warm nutty ethereal
Odor Type :nutty
explosive limit :3.10-14.8%(V)
Water Solubility :60 g/L (20 ºC)
Sensitive :Air & Light Sensitive
Merck :14,8014
JECFA Number :1314
BRN :1159
Dielectric constant :7.5（17℃）
Stability :Stable. Incompatible with strong acids, strong oxidizing agents. Combustible.
InChIKey :KAESVJOAVNADME-UHFFFAOYSA-N
LogP :0.85
CAS DataBase Reference :109-97-7(CAS DataBase Reference)
NIST Chemistry Reference :Pyrrole(109-97-7)
EPA Substance Registry System :1H-Pyrrole (109-97-7)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H226 Flammable liquid and vapour Flammable liquids Category 3 Warning H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501 H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310 H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 Keep container tightly closed. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.