Methoxychlor Methylal

Dichloropropylene, frans-1,3-Dichloropropylene, Dieldrin, Diuron, Epichlorohydrin, Formaldehyde, Hexachlorocyclopentadiene, Eindane, Methoxychlor, Methyl chloride. Methylene chloride, Pentachlorophenol, 2,4,5-T, 1,1,2,2-Tetrachloroethane, Toxaphene, 1,1,1-Trichloroethane, 1,1,2-Trichloroethane, 1,2,3-Trichloropropane, Trichloroethylene, 1.1.1-Trichloro-2.2.2-trifluoroethane. Trichlorofluoromethane, Vinyl chloride Hydrofluoric acid, see Trichlorofluoromethane, 1.1.1-Trichloro-2.2.2-trifluoroethane. Trifluralin Hydrogen, see Benzene, Chloroform, Difenzoquat methyl sulfate. 1,4-Dioxane, Ethylamine, Ethylbenzene, Ethylenimine, Formaldehyde. Formic acid, Hexachlorobenzene, Methyl bromide. Pentachlorobenzene. TCDD. Tetrachloroethylene. 

Mercury compounds Methanol Methoxychlor Methyl bromide Methyl chloride Methyl ethyl ketone Methyl hydrazine Methyl iodide Methyl isobutyl ketone Methyl isocyanate Methyl methacrylate Methyl f-butyl ether... 

Analysis. Aqueous solutions were extracted with 2 (iL of toluene In tubes used for Irradiation. Pesticide concentrations in the toluene extracts were determined directly by GLC using a 1 electron capture detector and a 15 meter X 0.53 mm (ID) bonded silicone phase (1.5 micron film thickness, 95% dlmethyl-5% diphe-nylpolyslloxane, 06-5 equivalent to SE-S) fused silica capillary column mounted in a conventional packed port. The Instrument operating conditions weret Inlet, 250 °C detector, 300 helium carrier gas flow rate, 7 nL/tnln. With a column temperature of 180 °C the dinitroanilines were completely resolved and exhibited the following retention tlmest fluchloralln (4.71 min) profluralln (4.29 min) isopropalln (11.27 min) trlfluralln (185 OC, 2.4 min). Details of the analysis of DOE, methoxychlor, methyl parathlon and -nltroanlsole are provided elsewhere (7). 

Maleic anhydride Methanol Methoxychlor Methyl bromide Methyl chloride Methyl chloroform MEK... 

Schwack W (1988) Photoinduced additions of pesticides to biomolecules. 2. Model reactions of DDT and methoxychlor with methyl oleate. J Agric Eood Chem 36 645-648. 

The size of the bacterial population increased, although there was no effect on the second-order rates of transformation of a number of compounds including phenol, and the agrochemicals propyl 2,4-dichlorophenoxyacetate, methyl parathion and methoxychlor (Paris... 

Much more promising is the method of Schechter and Haller (3), which depends upon the coupling of the tetranitro derivative of DDT with methanolic sodium methylate. Under conditions of intensive nitration methoxychlor will yield by this procedure a red color with an absorption maximum at 535 m/z. 

Eisler, R. 1967. Tissue Changes in Puffers Exposed to Methoxychlor and Methyl Parathion. U.S. Bur. Sport Fish. Wildl., Tech. Paper 17. 15 pp. 

BRN 1912585, see Hexachlorobenzene BRN 1912384, see 2,4-Dinitrotoluene BRN 1913355, seep,p -DDE BRN 1914064, see Di-fl-butyl phthalate BRN 1914072, see p,p -DDD BRN 1915474, see Chlordane BRN 1915994, see Di-fl-octyl phthalate BRN 2049930, see Naled BRN 2051258, see Pindone BRN 2052046, see 2,6-Dinitrotoluene BRN 2054389, see 4,6-Dinitro-o-cresol BRN 2055620, see 2,4,5-T BRN 2057367, see Methoxychlor BRN 2059093, see Parathion BRN 2062204, see Benzyl butyl phthalate BRN 2215168, see Diuron BRN 2542580, see EPN BRN 2807677, see 2-Acetylaminofluorene BRN 3195880, see a-BHC BRN 3196099, see Camphor BRN 3910347, see cis-Chlordane, frans-Chlordane Brocide, see 1,2-Dichloroethane Brodan, see Chlorpyrifos Bromchlophos, see Naled Bromex, see Naled Bromic ether, see Ethyl bromide Bromobenzol, see bromobenzene 4-Bromobiphenyl ether, see 4-Bromophenyl phenyl ether 4-Bromodiphenyl ether, see 4-Bromophenyl phenyl ether p-Bromodiphenyl ether, see 4-Bromophenyl phenyl ether Bromoethane, see Ethyl bromide Bromofluoroform, see Bromotrifluoromethane Bromofume, see Ethylene dibromide Brom-o-gaz, see Methyl bromide Bromomethane, see Methyl bromide Bromomethyl chloride, see Bromochloromethane... 

Dilatin DB, see 1,2-DichIorobenzene Dilatin DBI, see 1,2-DichIorobenzene Dilene, see p,p -DDD Dimazine, see 1,1-Dimethylhydrazine Dimethoxy-DDT, see Methoxychlor p,p -Dimethoxydiphenyltrichloroethane, see Methoxychlor Dimethoxy-DT, see Methoxychlor Dimethoxymethane, see Methylal... 

Methenyl trichloride, see Chloroform Methogas, see Methyl bromide Methoxcide, see Methoxychlor Methoxo, see Methoxychlor... 

Propham. Tetrachloroethylene Anisil, see Methoxychlor Anisoin, see Methoxychlor Anthracene, see Bis(2-ethylhexyl) phthalate, Methyl bromide... 

Methoxychlor is degraded in vivo by 0-dealkylation and excreted as mono-and bis-phenols. It is much less environmentally persistent also much less toxic to rats (oral LD q> 6000 mg/Kg compared with LD q 118 mg/Kg for DDT Metcalf, ref. 16). However, methoxychlor toxicity in fish approaches that of DDT, and in cold water fish, e.g., Atlantic salmon, it can accumulate to excessive levels. Although much less toxic in mammals than DDT it is similar in its estrogenic action. Methylchlor is less toxic to fish than methoxychlor, but also rather ineffectual as an insecticide. Comparison of the persistence characteristics of the methyl and methoxy analogs of DDT shows the microsomal side chain oxidation of the alkyl group to be more efficient than microsomal 0-dealkylation. 

Many xenobiotics contain alkyl groups, such as the methyl (-CH3) group, attached to atoms of O, N, and S. An important step in the metabolism of many of these compounds is replacement of alkyl groups by H, as shown in Figure 7.6. These reactions are carried out by mixed-function oxidase enzyme systems. Examples of these kinds of reactions with xenobiotics include O-dealky-lation of methoxychlor insecticides, N-dealkylation of carbary 1 insecticide, and S-dealkylation of dimethyl mercaptan. Organophosphate esters (see Chapter 18) also undergo hydrolysis, as shown in Reaction 7.3.12 for the plant systemic insecticide demeton ... 

The American Public Health Association [97,98] published an early gas chromatographic method for the solvent extraction and gas chromatographic determination of 11 chlorinated insecticides in water samples in amounts, down to 0.005mg L 1 p,p -DT)E, p,p -DDT, Aldrin, Dieldrin, Endrin, Heptachlor, Heptachlor epoxide, Lindane, Isodrin and Methoxychlor. The insecticides Carbophenothion, Chlordane, Dioxathion, Diazinon, Ethion, Malathion, Parathion methyl, methyl Trithion, Parathion, Toxaphene and VC-13 may be determined when present at higher levels. Also, the chemicals chlordane, hexachlorobicycloheptadiene and hexachlorocyclopentadiene, which are pesticide manufacturing precursors, may be analysed by this method. 

Chlorinated hydrocarbon Insecticides Fumigants DDT, Dieldrin, BHC, Aldrin, Endrin Lindane, Methoxychlor, Toxaphene CCI4 Acrylonitrite, Chloropicrin, Methyl bromide, Trichloroethane... 

Alachlor, benzene hexachloride, cycloodines, aldrin, chlordane, dieldrin, endrin, endosulfan, heptachlor, isodrin, telodrin and toxaphene, DDT and metabolites, dicofol, dimethoate, lindane, methoxychlor, mirex, pentachlorophenol, perthane Azinphosmethyl, bromophos ethyl, chlorpyrifos, crotoxyphos, demeton, diazinon, dichlorvos, ethion, fenitrothion, fensulfothin, fenthion, flusulfothin, methamidophos, mevinphos monocrotophos and dichrotophos, oxamyl, phorate, parathion (ethyl), parathion (methyl), phosphomidon, quinolphos temephos Aldicarb, benomyl, carbaryl, chlorpropham, fenvalerate, methomyl... 

Dinitrotoluene Endrin Heptachlor Hexachlorobenzene Hexachlorobutadiene Hexachloroethane Isobutanoi Lindane Methoxychlor Methylene chloride Methyl ethyl ketone Nitrobenzene Pentaehlorophenol Phenol... 

METOX (72-43-5) see methoxychlor. METRACRILATO de terc-BUTILO (Spanish) (97-88-1) see butyl methacrylate. METRON (298-00-0) see methyl parathion. METSO 20 or METSO BEADS 2048 or METSO BEADS, DRYMET or METSO PENTABEAD 20 (6834-92-0 1344-09-8) see sodimn silicate. 

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