Melting point :33-35 °C(lit.)
Boiling point :149-150 °C25 mm Hg(lit.)
Density :1.255
refractive index :1.5101 (estimate)
Flash point :>230 °F
solubility :Chloroform (Slightly), Methanol (Slightly)
pka :6.82±0.10(Predicted)
form :Liquid or Low Melting Solid
color :Clear colorless to light yellow
Water Solubility :soluble
Sensitive :Air Sensitive
BRN :2039306
Stability :Stability Air sensitive. Incompatible with oxidizing agents.
LogP :1.690 (est)
CAS DataBase Reference :637-89-8(CAS DataBase Reference)
NIST Chemistry Reference :4-Mercaptophenol(637-89-8)
EPA Substance Registry System :Phenol, 4-mercapto- (637-89-8)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes 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:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.