Melting point :-70.9 °C
Boiling point :178 °C (lit.)
Density :0.919 g/mL at 25 °C (lit.)
vapor density :4.2 (vs air)
vapor pressure :1.853hPa at 20℃
FEMA :3546 | 5-ETHYL-2-METHYLPYRIDINE
refractive index :n20/D 1.497(lit.)
Flash point :151 °F
storage temp. :Store below +30°C.
solubility :12.0g/l
pka :pK1:6.51(+1) (20°C)
form :clear liquid
color :Colorless to Light orange to Yellow
Specific Gravity :0.921 (20/4℃)
Odor :at 0.10 % in propylene glycol. nutty strong raw potato roasted earthy
Odor Type :nutty
Water Solubility :practically insoluble
Merck :14,3844
JECFA Number :1318
BRN :109269
Stability :Stable. Hygroscopic. Combustible. Incompatible with strong oxidizing agents.
InChIKey :NTSLROIKFLNUIJ-UHFFFAOYSA-N
LogP :2.1 at 22℃
CAS DataBase Reference :104-90-5(CAS DataBase Reference)
NIST Chemistry Reference :Pyridine, 5-ethyl-2-methyl-(104-90-5)
EPA Substance Registry System :5-Ethyl-2-methylpyridine (104-90-5)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H311 Toxic in contact with skin Acute toxicity,dermal Category 3 Danger P280, P302+P352, P312, P322, P361,P363, P405, P501 H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Precautionary statements:	P270 Do not eat, drink or smoke when using this product. 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. P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. 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.