Melting point :-44.8 °C
Boiling point :142-144 °C (lit.)
Density :0.93 g/mL at 25 °C (lit.)
vapor pressure :17.6 mm Hg ( 37.7 °C)
refractive index :n20/D 1.549(lit.)
Flash point :88 °F
storage temp. :Store at +2°C to +8°C.
solubility :H2O: insoluble
pka :19(at 25℃)
form :Liquid
color :Clear colorless to yellow
Specific Gravity :0.930
Water Solubility :INSOLUBLE
Sensitive :Light Sensitive
Merck :14,3861
BRN :605461
Henry's Law Constant :1.6×10^-2 mol/(m³Pa) at 25℃, Duchowicz et al. (2020)
Dielectric constant :3.0（20℃）
Stability :Stable. Flammable. Incompatible with strong oxidizing agents, acids, halogens.
InChI :1S/C8H6/c1-2-8-6-4-3-5-7-8/h1,3-7H
InChIKey :UEXCJVNBTNXOEH-UHFFFAOYSA-N
SMILES :C#Cc1ccccc1
CAS DataBase Reference :536-74-3(CAS DataBase Reference)
NIST Chemistry Reference :Phenylacetylene(536-74-3)
EPA Substance Registry System :Phenylacetylene (536-74-3)

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 H304 May be fatal if swallowed and enters airways Aspiration hazard Category 1 Danger 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
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 Keep container tightly closed. P240 Ground/bond container and receiving equipment. P241 Use explosion-proof electrical/ventilating/lighting/…/equipment. P242 Use only non-sparking tools. P243 Take precautionary measures against static discharge. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. 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. P331 Do NOT induce vomiting. P332+P313 IF SKIN irritation occurs: Get medical advice/attention. P337+P313 IF eye irritation persists: Get medical advice/attention. P370+P378 In case of fire: Use … for extinction. P403+P235 Store in a well-ventilated place. Keep cool. P405 Store locked up. P501 Dispose of contents/container to..…