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| Name |
Barban |
EINECS | 202-930-4 |
| CAS No. | 101-27-9 | Density | 1.394 g/cm3 |
| PSA | 38.33000 | LogP | 3.20370 |
| Solubility | Micro dissolve in water, hexane, soluble in benzene | Melting Point |
75-76oC |
| Formula | C11H9 Cl2 N O2 | Boiling Point | 340.8 °C at 760 mmHg |
| Molecular Weight | 258.104 | Flash Point | 159.9 °C |
| Transport Information | UN3077 9/PG 3 | Appearance | N/A |
| Safety | 24-36/37-60-61 | Risk Codes | 22-43-50/53 |
| Molecular Structure |
|
Hazard Symbols |
 Xn N
|
| Synonyms |
Carbamicacid, (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 |
Barban Chemical Properties
The IUPAC name of Barban (CAS NO.101-27-9):: 4-Chlorobut-2-ynyl N-(3-chlorophenyl)carbamate
Synonyms: (3-Chlorophenyl)carbamic acid 4-chloro-2-butynyl ester ; (4-Chloor-but-2-yn-yl)-N-(3-chloor-fenyl)-carbamaat ; (4-Chloor-but-2-yn-yl)-N-(3-chloor-fenyl)-carbamaat [Dutch] ; (4-Chlor-but-2-in-yl)-N-(3-chlor-phenyl)-carbamat ; (4-Chlor-but-2-in-yl)-N-(3-chlor-phenyl)-carbamat [German] ; (4-Cloro-but-2-in-il)-N-(3-cloro-fenil)-carbammato ; (4-Cloro-but-2-in-il)-N-(3-cloro-fenil)-carbammato [Italian] ; 2-Butyn-1-ol, 4-chloro-, m-chlorocarbanilate ; 2-Butynyl 4-chloro-m-chlorocarbanilate ; 2-Butynyl-4-chloro-m-chlorocarbanilate ; 4-Chloro-2-butynyl 3-chlorocarbanilate ; 4-Chloro-2-butynyl N-(3-chlorophenyl)carbamate ; 4-Chloro-2-butynyl m-chlorocarbanilate ; 4-Chloro-2-butynyl m-chlorophenylcarbamate (8CI) ; 4-Chloro-2-butynyl meta-chlorocarbanilate ; 4-Chloro-2-butynylm-chlorocarbanilate ; 4-Chlorobut-2-ynyl 3-chlorophenylcarbamate ; 4-Chlorobut-2-ynyl-m-chlorocarbanilate ; Barbamate ; Barban ; Barbane ; Barbane [ISO-French] ; Carbin ; Carbine ; Carbyne ; Carbyne (herbicide) ; Chlorinat ; Chloro-2-butynyl m-chlorocarbamate ; Karbin ; N-(3-Chloro phenyl) carbamate de 4-chloro 2 butynyle ; N-(3-Chloro phenyl) carbamate de 4-chloro 2 butynyle
CAS: 101-27-9
EINECS: 202-930-4
Molecular Formula: C11H9Cl2NO2
Formula Weight: 258.1 g/mol
Molecular Structure:
.png)
Index of Refraction: 1.607
Density: 1.394 g/cm3
Flash Point: 159.9 °C
Boiling Point: 340.8 °C at 760 mmHg
General Description: Crystalline solid. Water solubility is 11 ppm at 20°C. Used as a selective herbicide.
Air & Water: Reactions Hydrolyzed by strong acid or base.
Barban Toxicity Data With Reference
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. |
Barban Consensus Reports
EPA Genetic Toxicology Program.
Barban Safety Profile
The Hazard Codes of Barban (CAS NO.101-27-9): 
Xn
N
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 NOx.
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