IUPAC Name: Butyl 4-methylbenzenesulfonate
Synonyms: Benzenesulfonic acid, 4-methyl-, butyl ester ; Butyl 4-methylbenzenesulfonate ; Butyl p-methylbenzenesulfonate ; Butyl p-toluenesulfonate ; Butyl toluene-4-sulphonate ; Butyl tosylate
CAS NO: 778-28-9
Molecular Formula of N-Butyl-P-toluenesulfonate (CAS NO.778-28-9) : C₁₁H₁₆O₃S
Molecular Weight of N-Butyl-P-toluenesulfonate (CAS NO.778-28-9) : 228.31
Molecular Structure of N-Butyl-P-toluenesulfonate (CAS NO.778-28-9) :
EINECS: 212-295-5
Product Categories:
Mol File: 778-28-9.mol
Index of Refraction: 1.506
Surface Tension: 37.1 dyne/cm
Density: 1.122 g/cm³
Flash Point: 156.6 °C
Enthalpy of Vaporization: 55.55 kJ/mol
Boiling Point: 335.4 °C at 760 mmHg
Vapour Pressure: 0.000234 mmHg at 25°C
Appearance:clear light yellow to brownish liquid

Reported in EPA TSCA Inventory.

Poison by intravenous route. Mildly toxic by subcutaneous route. See also SULFONATES. When heated to decomposition it emits toxic fumes of SO_x.
Hazard CodesXn
Risk Statements 36/37/38-22
R22:Harmful if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements 37/39-26
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S37/39:Wear suitable gloves and eye/face protection.
RTECS XT6400000

General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or chemical foam. 
Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage: Store in a cool, dry place. Store in a tightly closed container .