Bis(2-chloro-1-methylethyl)ether.

Bioassay of Technical Grade Bis(2-chloro-1-methylethyl) ether for Possible Carcinogenicity (CAS No. 108-60-1).

Bis(2-chloro-1-methylethyl) ether is a beta-haloether and a byproduct of propylene oxide and propylene glycol manufacture. A bioassay of technical grade bis(2-chloro-1-methylethyl) ether for possible carcinogenicity was conducted by administering the test chemical by gavage to F344 rats. Groups of 50 rats of each sex were administered a solution of bis(2-chloro-1-methylethyl) ether in corn oil ...

[2-chloro-1,1,2-trifluoroethyl-difluoromethyl-ether (ethrane), in anesthesiology].

Tris(μ2-methano­lato)-μ3-oxido-tris­{[(E)-4-chloro-2-({[2-(pyridin-2-yl)eth­yl]imino}­meth­yl)pheno­lato]manganese(III)} perchlorate–di­chloro­methane–diethyl ether (1/1.1/0.9)

In the title compound, [Mn3(C14H12ClN2O)3(CH3O)3O]ClO4·1.1CH2Cl2·0.9C4H10O, the cation consists of a central Mn3O core with μ2-methano-late bridging between adjacent MnIII atoms, thus giving each MnIII atom a mer-O3 coordination environment. Six-coordination for each MnIII atom is provided by the deprotonated Schiff base ligand (E)-4-chloro-2-({[2-(pyridin-2-yl)eth-yl]imino}-meth-yl)phenolate. ...

Herbicides in ground water beneath Nebraska's Management Systems Evaluation Area.

Profiles of ground water pesticide concentrations beneath the Nebraska Management Systems Evaluation Area (MSEA) describe the effect of 20 yr of pesticide usage on ground water in the central Platte Valley of Nebraska. During the 6-yr (1991-1996) study, 14 pesticides and their transformation products were detected in 7848 ground water samples from the unconfined water table aquifer. Triazine an...

Photosynthesis involvement in the mechanism of action of diphenyl ether herbicides.

Photosynthesis is not required for the toxicity of diphenyl ether herbicides, nor are chloroplast thylakoids the primary site of diphenyl ether herbicide activity. Isolated spinach (Spinacia oleracea L.) chloroplast fragments produced malonyl dialdehyde, indicating lipid peroxidation, when paraquat (1,1'-dimethyl-4,4'-bipyridinium ion) or diuron [3-(3,4-dichlorophenyl)-1,1-dimethylurea] were ad...