Melting point :5°C
Boiling point :144 °C10 mm Hg(lit.)
Density :1.291 g/mL at 25 °C(lit.)
vapor pressure :1 mm Hg ( 100 °C)
refractive index :n20/D 1.534(lit.)
Flash point :>230 °F
storage temp. :under inert gas (nitrogen or Argon) at 2-8°C
form :Liquid
Specific Gravity :1.291.291
color :Clear colorless to yellow
Odor :acrid odor
Water Solubility :reacts
Sensitive :Moisture Sensitive
BRN :391287
InChIKey :VLJQDHDVZJXNQL-UHFFFAOYSA-N
LogP :0.6 at 30℃
CAS DataBase Reference :4083-64-1(CAS DataBase Reference)
NIST Chemistry Reference :4-Methylbenzenesulfonyl isocyanate(4083-64-1)
EPA Substance Registry System :Benzenesulfonyl isocyanate, 4-methyl- (4083-64-1)

Symbol(GHS):
Signal word:	Danger
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 H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled Sensitisation, respiratory Category 1 Danger P261, P285, P304+P341, P342+P311,P501 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.