Melting point :2.4 °C (lit.)
Boiling point :145 °C (lit.)
Density :0.957 g/mL at 25 °C (lit.)
vapor density :3.2 (vs air)
vapor pressure :4 mm Hg ( 20 °C)
refractive index :n20/D 1.504(lit.)
Flash point :134 °F
storage temp. :Store below +30°C.
solubility :alcohol: soluble(lit.)
pka :6.02(at 20℃)
form :Liquid
color :Clear light yellow
Odor :Obnoxious, Sweetish
explosive limit :1.3-8.7%(V)
Water Solubility :soluble
Sensitive :Air Sensitive & Hygroscopic
Merck :14,7402
BRN :104586
Dielectric constant :12.279999999999999
InChIKey :FKNQCJSGGFJEIZ-UHFFFAOYSA-N
LogP :1.22 at 25℃
CAS DataBase Reference :108-89-4(CAS DataBase Reference)
NIST Chemistry Reference :Pyridine, 4-methyl-(108-89-4)
EPA Substance Registry System :4-Methylpyridine (108-89-4)

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 H311 Toxic in contact with skin Acute toxicity,dermal Category 3 Danger P280, P302+P352, P312, P322, P361,P363, P405, P501 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:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.