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Name	Parbendazole	EINECS	238-133-3
CAS No.	14255-87-9	Density	1.234 g/cm³
PSA	N/A	LogP	N/A
Solubility	<0.1 g/100 mL at 18℃	Melting Point	255-257 °C
Formula	C₁₃H₁₇N₃O₂	Boiling Point	390.33°C (rough estimate)
Molecular Weight	247.297	Flash Point	N/A
Transport Information	N/A	Appearance	solid
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 NO_x. See also CARBAMATES.	Risk Codes	63-22
Molecular Structure		Hazard Symbols	Xn
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;	Article Data	5

Parbendazole Chemical Properties

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:
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.

Parbendazole Uses

5-Butyl-2-benzimidazolecarbamic acid methyl ester (CAS NO.14255-87-9) is used as pharmaceutical intermediate.

Parbendazole 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.

Parbendazole 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 NO_x. See also CARBAMATES.

Parbendazole 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.

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