CARBETAMIDE

CARBETAMIDE Basic information
Product Name:CARBETAMIDE
Synonyms:(1-ethylcarbamoyl)ethylester,d-(-)-carbanilicaci;(phenylcarbamoyloxy)-2-n-ethylpropionamide;(r)-n-ethyl-2-(((phenylamino)carbonyl)oxy)propanamide;11,561rp;(R)-1-(ethylaMino)-1-oxopropan-2-yl phenylcarbaMate;CarbetaMide 0;Carbetamide Standard;Carbetamide Solution, 1000ppm
CAS:16118-49-3
MF:C12H16N2O3
MW:236.27
EINECS:240-286-6
Product Categories:
Mol File:16118-49-3.mol
CARBETAMIDE Structure
CARBETAMIDE Chemical Properties
Melting point &gt110°C
Boiling point 378.73°C (rough estimate)
density 1.174
refractive index 1.5460 (estimate)
storage temp. 0-6°C
solubility Chloroform (Slightly), Methanol (Slightly)
pka13.22±0.70(Predicted)
form neat
Water Solubility 3.5g/L(20 ºC)
BRN 8318291
LogP1.520 (est)
EPA Substance Registry SystemCarbetamide (16118-49-3)
Safety Information
Hazard Codes Xi
WGK Germany 2
RTECS FD8900000
HS Code 29242990
Toxicitydog,LD50,oral,900mg/kg (900mg/kg),Guide to the Chemicals Used in Crop Protection. Vol. 6, Pg. 80, 1973.
MSDS Information
CARBETAMIDE Usage And Synthesis
Chemical PropertiesCarbetamide is a colorless, crystalline powder, or solid.
UsesCarbetamide is used in the determination of pesticides.
DefinitionChEBI: A carbamate ester obtained by the formal condensation of phenylcarbamic acid with the hydroxy group of N-ethyl-2-hydroxypropanamide.
Potential ExposureCarbamate herbicide used to kill unwanted plants
Metabolic pathwayPhotodegradation of carbetamide in solution with UV irradiation in the presence of UV ? H2O2 and ? TiO2 primarily occurs at the o- and p-positions, but not at the m-position of the phenyl ring, and the preferential photoproduct isolated is ortho-hydroxylated carbetamide. 5-Methyl-3-phenyl-oxazolidine dione is isolated only in the presence of TiO2. The cyclization may result from radical coupling with the dissolved oxygen. N-De-ethylation of the ethylcarbamoyl group and hydroxylation on the carbamoyloxy linkage occur to yield free amine of carbetamide and lactamide analogs. It is interesting to note that formulated carbetamide is phototransformed to N-ethyllactamide- 4-aminobenzoate as a major product via the rearrangement reaction similar to the Photo-Fries reaction. The degradation kinetics of carbetamide and its potential metabolites are measured at different temperatures in both unsterilized and sterilized alkaline soil.
The chemical degradation of carbetamide importantly gives N-phenyl-3-methyloxazolidine-2,5- dione which results in 2-(phenylcarbamoyloxy)- propionic acid and N-phenyl-2-hydroxypropionamide and the aniline in the soil. The purely biological degradation of this compound cannot clearly yield degradation products that are different from those by chemical degradation in non-sterilized soils.
ShippingUN2757 Carbamate pesticides, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials. UN 2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required
IncompatibilitiesSlowly hydrolyzes in water, releasing ammonia and forming acetate salts. Carbamates are incompatible with reducing agents, strong acids, oxidizing acids, peroxides, and bases. Contact with active metals or nitrides cause the release of flammable, and potentially explosive, hydrogen gas. Amides react with azo and diazo compounds to generate toxic gases. Flammable gases are formed by the reaction of organic amides with strong reducing agents such as hydrideds and active metals. Amides are very weak bases (weaker than water). Mixing amides with dehydrating agents such as phosphorus pentoxide or thionyl chloride generates the corresponding nitrile. The combustion of these compounds generates mixed oxides of nitrogen (NOx). This compound is decomposed by strong base or acid.
Waste DisposalDo not discharge into drains or sewers. Dispose of waste material as hazardous waste using a licensed disposal contractor to an approved land fill. Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Incineration with effluent gas scrubbing is recommended. Containers must be disposed of properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.
CARBETAMIDE Preparation Products And Raw materials
Raw materialsMethyl propionate-->Phenyl isocyanate-->Propionamide-->L(+)-Lactic acid
CARBETAMIDE D5 (PHENYL D5) Propham CARBETAMIDE Propionamide

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