Benzenesulfonic acid,4-methyl-, butyl ester cas no:778-28-9

NameBenzenesulfonic acid,4-methyl-, butyl ester
CAS778-28-9
Synonymsp-Toluenesulfonicacid, butyl ester (6CI,7CI,8CI); 4-Methylbenzenesulfonic acid butyl ester;Butyl 4-toluenesulfonate; Butyl p-methylbenzenesulfonate; Butylp-toluenesulfonate; NSC 6190; Toluene-4-sulfonic acid butyl ester; n-Butylp-toluenesulfonate; n-Butyl tosylate
EINECS(EC#)212-295-5
Molecular FormulaC11H16 O3 S
Molecular Weight228.33

refractive index1.503-1.505

Hazard Xn
Risk 36/37/38-22
Safety

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

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
mouse	LD	intraperitoneal	> 500mg/kg (500mg/kg)		"Summary Tables of Biological Tests," National Research Council Chemical-Biological Coordination Center. Vol. 2, Pg. 303, 1950.
mouse	LD50	intravenous	320mg/kg (320mg/kg)		U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. Vol. NX#01764,
rat	LD50	subcutaneous	5gm/kg (5000mg/kg)		Zeitschrift fuer Krebsforschung. Vol. 74, Pg. 241, 1970.