Melting point :-12 °C
Boiling point :163-164 °C(lit.)
Density :0.954 g/mL at 25 °C(lit.)
refractive index :n20/D 1.511(lit.)
Flash point :129 °F
storage temp. :Flammables area
pka :6.46(at 25℃)
form :clear liquid
color :yellow
Water Solubility :52 g/L (20 ºC)
Sensitive :Hygroscopic
BRN :106583
Dielectric constant :11.470000000000001
LogP :1.749 (est)
CAS DataBase Reference :583-58-4(CAS DataBase Reference)
NIST Chemistry Reference :Pyridine, 3,4-dimethyl-(583-58-4)
EPA Substance Registry System :3,4-Dimethylpyridine (583-58-4)

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 H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, 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.