Contact us: +91 9550333722 040 - 40102781
Structured search
India
Choose your country
Different countries will display different contents
Try our best to find the right business for you.
My chemicalbook

Welcome back!

HomeProduct name listETHIOFENCARB

ETHIOFENCARB

  • CAS NO.:29973-13-5
  • Empirical Formula: C11H15NO2S
  • Molecular Weight: 225.31
  • MDL number: MFCD00055463
  • EINECS: 249-981-9
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-05-04 17:34:37
ETHIOFENCARB Structural

What is ETHIOFENCARB?

Description

Ethiofencarb, α-ethylthio o-tolyl methylcarbamate (IUPAC), C11H25N02S, MW 225.3, mp 33.4 ?C, forms colorless crystals that are moderately soluble in water, are fairly soluble in hexane, and are readily soluble in dichloromethane, isopropanol, and toluene.

The Uses of ETHIOFENCARB

Ethiofencarb is a kind of Systemic insecticide ,used to control aphids on fruit crops.

The Uses of ETHIOFENCARB

Ethiofencarb is a systemic insecticide with contact and stomach action. It is used to control aphids on fruit, vegetables, ornamentals and sugar beet.

Preparation

Ethiofencarb is produced by reaction of 2-chloromethyl phenol with sodium ethylmercaptide to form 2-ethylthio methylphenol, which in turn is reacted with methylisocyanate.

Definition

ChEBI: Ethiofencarb is a carbamate ester. It has a role as a carbamate insecticide, an EC 3.1.1.7 (acetylcholinesterase) inhibitor and an agrochemical. It is functionally related to a methylcarbamic acid and a 2-[(ethylsulfanyl)methyl]phenol.

Environmental Fate

Plant. Degrades in plants to the sulfone and sulfoxide (Hartley and Kidd, 1987).

Metabolic pathway

Ethiofencarb is metabolised by rapid oxidation at sulfur, hydrolysis of the carbamate group to give phenols, hydroxylation of the N-methyl moiety and conjugation.

Degradation

Ethiofencarb is stable in neutral and acidic but is hydrolysed under basic conditions. DT50 values at pH 7 and 11.4 (37 °C) were 450 hours and 5 minutes, respectively. The kinetics of hydrolysis of ethiofencarb in pure water and in aqueous solutions at pH 2,6,9,12 and at temperatures in the range 4-50°C were studied. No acid hydrolysis was observed. Ethiofencarb was rapidly hydrolysed at pH 9 and 12. Ethiofencarb in pure water at room temperature reached an equilibrium with 80% remaining undegraded (Sanz-Asensio et al., 1997).
Photodegradation of aqueous solutions in sunlight is rapid (PM). The oxidative photodegradation of ethofencarb was studied in aqueous acetonitrile using anthraquinone to mimic natural photosensitisers. Solutions were irradiated with a Hg lamp (400 W) for 48 minutes. The emission spectrum of the lamp was not described. Reaction products were identified by GC-MS methods. The main products were 2- hydroxybenzaldehyde (2) and 3-methylbenzo[e-1,3]oxazine-2,4-dione(3) (see Scheme 1). Products resulted from photocleavage of the CH,-S bond and/or the C-O bond followed by hydrogen atom abstraction and photo-oxidation. An electron-acceptor photosensitiser may increase rates of photodegradation (Galadi and Julliard, 1996). Solutions of ethiofencarb in cyclohexane, cyclohexene or isopropanol were irradiated with a high pressure Hg lamp (cut-off filter <280 nm) or natural sunlight (Germany, May-July). Analysis was by HPLC with diode-array detection, NMR, IR and MS. Half-lives of photodegradation were in the range 20 minutes to more than 20 hours. The predominant reaction (Scheme 1) was photo-oxidation of ethiofencarb to its sulfoxide (4). The cyclic dione (3) was a product of oxidation at the benzylic position. Ethiofencarb was photo-oxidised in cyclohexane to the sulfoxide (4) and the sulfone (5) and their corresponding phenols (8 and 9), the latter being a minor product. Subsequently the cyclised dione (3) was formed. In isopropanol, reaction with solvent gave addition products (6 and 7) and an unusual bis-diethylthio compound (10) (Kopf and Schwack, 1995).

Properties of ETHIOFENCARB

Melting point: 43-45℃
Boiling point: 327.3±34.0 °C(Predicted)
Density  1.231 g/cm3 (20 ºC)
vapor pressure  4.5 x 10-4 Pa (20 °C)
refractive index  1.4790 (estimate)
storage temp.  APPROX 4°C
form  neat
Water Solubility  1800 mg l-1 (20 °C)
pka 12.09±0.46(Predicted)
BRN  2973224
CAS DataBase Reference 29973-13-5(CAS DataBase Reference)
EPA Substance Registry System Ethiofencarb (29973-13-5)

Safety information for ETHIOFENCARB

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
ghs
Environment
GHS09
GHS Hazard Statements H302:Acute toxicity,oral
H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P270:Do not eat, drink or smoke when using this product.
P273:Avoid release to the environment.
P391:Collect spillage. Hazardous to the aquatic environment
P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P501:Dispose of contents/container to..…

Computed Descriptors for ETHIOFENCARB

Related products of tetrahydrofuran

You may like

  • Ethiofencarb CAS 29973-13-5
    Ethiofencarb CAS 29973-13-5
    29973-13-5
    View Details
  • 1-Methyl-6-oxo-1,6-dihydropyridazine-3-carbonitrile 98%
    1-Methyl-6-oxo-1,6-dihydropyridazine-3-carbonitrile 98%
    99903-60-3
    View Details
  • 1823368-42-8 98%
    1823368-42-8 98%
    1823368-42-8
    View Details
  • 2-(3-(tert-butyl)phenoxy)-2-methylpropanoic acid 1307449-08-6 98%
    2-(3-(tert-butyl)phenoxy)-2-methylpropanoic acid 1307449-08-6 98%
    1307449-08-6
    View Details
  • Ethyl 3-(furan-2-yl)-3-hydroxypropanoate 25408-95-1 98%
    Ethyl 3-(furan-2-yl)-3-hydroxypropanoate 25408-95-1 98%
    25408-95-1
    View Details
  • 2-Chloro-5-fluoro-1-methoxy-3-methylbenzene 98%
    2-Chloro-5-fluoro-1-methoxy-3-methylbenzene 98%
    1805639-70-6
    View Details
  • 1784294-80-9 98%
    1784294-80-9 98%
    1784294-80-9
    View Details
  • Lithium Clavulanate
    Lithium Clavulanate
    61177-44-4
    View Details
Statement: All products displayed on this website are only used for non medical purposes such as industrial applications or scientific research, and cannot be used for clinical diagnosis or treatment of humans or animals. They are not medicinal or edible.