Carbamic acid,N-(3-chlorophenyl)-, 4-chloro-2-butyn-1-yl ester cas no:101-27-9

NameCarbamic acid,N-(3-chlorophenyl)-, 4-chloro-2-butyn-1-yl ester
CAS101-27-9
SynonymsCarbamicacid, (3-chlorophenyl)-, 4-chloro-2-butynyl ester (9CI); Carbanilic acid,m-chloro-, 4-chloro-2-butynyl ester (6CI,8CI); 4-Chloro-2-butyn-1-ylN-(3-chlorophenyl)carbamate; 4-Chloro-2-butynyl 3-chlorocarbanilate;4-Chloro-2-butynyl N-(3-chlorophenyl)carbamate; 4-Chloro-2-butynylm-chlorocarbanilate; 4-[N-(3-Chlorophenyl)carbamoyloxy]-1-chloro-2-butyne; A980; A 980 (herbicide); Barban; Barbane; CBN; Carbyne; Carbyne (herbicide); NSC29168; S 847
EINECS(EC#)202-930-4
Molecular FormulaC11H9 Cl2 N O2
Molecular Weight258.11

refractive index1.607
storage temp0-6°C

Hazard Xn: Harmful;N: Dangerous for the environment;
Risk R22
Safety

The Hazard Codes of Barban (CAS NO.101-27-9):  XnN
Risk Statements: R22:Harmful if swallowed. R43:May cause sensitization by skin contact. R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: S24:Avoid contact with skin. S36/37:Wear suitable protective clothing and gloves. S60:This material and its container must be disposed of as hazardous waste. S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN3077 9/PG 3
RTECS: FD7700000

Poison by ingestion, inhalation, and possibly other routes. Mildly toxic by skin contact. Mutation data reported. An herbicide. See also CARBAMATES and ESTERS. When heated to decomposition it emits very toxic fumes of Cl⁻ and NO_x.

The toxicity of Barban (CAS NO.101-27-9):

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
guinea pig	LD50	oral	240mg/kg (240mg/kg)		Pharmacological Reviews. Vol. 14, Pg. 225, 1962.
mammal (species unspecified)	LD50	unreported	240mg/kg (240mg/kg)		"Chemistry of Pesticides," Melnikov, N.N., New York, Springer-Verlag New York, Inc., 1971Vol. -, Pg. 202, 1971.
mouse	LD50	oral	322mg/kg (322mg/kg)		Farmakologiya i Toksikologiya Vol. 35, Pg. 356, 1972.
rabbit	LD50	oral	600mg/kg (600mg/kg)		Pharmacological Reviews. Vol. 14, Pg. 225, 1962.
rabbit	LD50	skin	23000mg/kg (23000mg/kg)		"Wirksubstanzen der Pflanzenschutz und Schadlingsbekampfungsmittel," Perkow, W., Berlin, Verlag Paul Parey, 1971-1976Vol. -, Pg. -, 1971/1976.
rat	LC50	inhalation	27400mg/m3/4H (27400mg/m3)		"Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 952, 1986.
rat	LD50	oral	527mg/kg (527mg/kg)		"Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 35, 1982.
rat	LD50	skin	> 1600mg/kg (1600mg/kg)		World Review of Pest Control. Vol. 9, Pg. 119, 1970.
rat	LD50	unreported	527mg/kg (527mg/kg)		Environmental Quality and Safety, Supplement. Vol. 3, Pg. 618, 1975.