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| CAS No.: | 14255-87-9 |
|---|---|
| Name: | Parbendazole |
| Molecular Structure: | |
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| Formula: | C13H17N3O2 |
| Molecular Weight: | 247.297 |
| Synonyms: | 2-Benzimidazolecarbamicacid, 5-butyl-, methyl ester (8CI);Carbamic acid, (5-butyl-1H-benzimidazol-2-yl)-,methyl ester (9CI);5-Butyl-2-(carbomethoxyamino)benzimidazole;Helatac;Helmatac;Methyl (5-butyl-1H-benzimidazol-2-yl)carbamate;Methyl5(6)-butyl-2-benzimidazolecarbamate;Methyl 5-butylbenzimidazole-2-carbamate;PBZ (fungicide);Parbendazole;SKF 29044; |
| EINECS: | 238-133-3 |
| Density: | 1.234 g/cm3 |
| Melting Point: | 255-257 °C |
| Boiling Point: | 390.33°C (rough estimate) |
| Solubility: | <0.1 g/100 mL at 18℃ |
| Appearance: | solid |
| Hazard Symbols: | Xn |
| Risk Codes: | 63-22 |
| Safety: | Moderately toxic by ingestion. Experimental teratogenic and reproductive effects. Human mutation data reported. An anthelminthic agent. When heated to decomposition it emits toxic fumes of NOx. See also CARBAMATES. |
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Chemistry
IUPAC Name: Methyl N-(6-butyl-1H-benzimidazol-2-yl)carbamate
Synonyms: 5-Butyl-2-benzimidazolecarbamic acid methyl ester ; 5-Butyl-2-(carbomethoxyamino)benzimidazole
Molecular Structure: .gif)
Molecular Formula : C13H17N3O2
Molecular Weight : 247.30
CAS NO: 14255-87-9
EINECS: 238-133-3
Mol File: 14255-87-9.mol
Melting point: 255-257 ºC
Index of Refraction: 1.631
Surface Tension: 54.5 dyne/cm
Density: 1.234 g/cm3
Water solubility : <0.1 g/100 mL at 18 ºC
Stability: 5-Butyl-2-benzimidazolecarbamic acid methyl ester (CAS NO.14255-87-9) is stable,incompatible with strong oxidizing agents.
Appearance: 5-Butyl-2-benzimidazolecarbamic acid methyl ester (CAS NO.14255-87-9) is crystals or fine white powder.
Uses
5-Butyl-2-benzimidazolecarbamic acid methyl ester (CAS NO.14255-87-9) is used as pharmaceutical intermediate.
Toxicity Data With Reference
| 1. | oms-hmn:leu 1 mg/L | THERAP Therapie. 31 (1976),505. | ||
| 2. | oms-dom:leu 1 mg/L | THERAP Therapie. 31 (1976),505. | ||
| 3. | orl-mus LD50:1700 mg/kg | BSVMA8 Bulletin de la Societe des Sciences Veterinaires et de Medecine Compare de Lyon. 77 (1975),379. | ||
| 4. | orl-dom LDLo:660 mg/kg | AUVJA2 Australian Veterinary Journal. 46 (1970),297. |
Safety Profile
Moderately toxic by ingestion. Experimental teratogenic and reproductive effects. Human mutation data reported. An anthelminthic agent. When heated to decomposition it emits toxic fumes of NOx. See also CARBAMATES.
Specification
1.Air & Water Reactions：Insoluble in water.
2.Reactivity Profile： Parbendazole is a carbamate ester-amine. Amines behave as chemical bases. Carbamates are chemically similar to, but more reactive than amides. Like amides they form polymers such as polyurethane resins. Carbamates are incompatible with strong acids and bases, and especially incompatible with strong reducing agents such as hydrides. Flammable gaseous hydrogen is produced by the combination of active metals or nitrides with carbamates. Strongly oxidizing acids, peroxides, and hydroperoxides are incompatible with carbamates.
3.Health Hazard ：Acute/Chrnoic hazards : When heated to decomposition Parbendazole emits toxic fumes.
4.Fire Hazard ：Flash point data for Parbendazole are not available; however, Parbendazole is probably combustible.