Fenvalerate is a potent insecticide that has been in use since 1976. It is an ester of 2-(4-chlorophenyl)-3-methylbutyric acid and alpha-cyano-3-phenoxybenzyl alcohol, but lacks a cyclopropane ring. However, in terms ...

Permethrin was first synthesized in 1973 and marketed in 1977 as a photostable pyrethroid. Approximately 600 tonnes per year of permethrin is at present used world-wide, mostly for agricultural purposes. It has a potential ...

d-Phenothrin has been in use since 1977. It is estimated that 70-80 tonnes of d-phenothrin are used annually worldwide, mainly to control noxious insects in the household and insects of public health concern and to protect ...

Tetramethrin was first synthesized in 1964 and first marketed in 1965. Chemically, it is an ester of chrysan-themic acid (2,2-imethyl-3-(2,2-dimethylvinyl)-cyclopro-panecarboxylic acid) with 3,4,5,6-tetrahydrophth ...

2-Propanol is a colourless highly flammable liquid with an odour resembling that of a mixture of ethanol and acetone. The compound is completely miscible with water, ethanol, acetone, chloroform, and benzene. Analytical ...

1-Propanol is a colourless, highly flammable liquid that is volatile at room temperature and normal atmospheric pressure. It is miscible with water and organic solvents. Analytical methods for propanol include gas ...

Cyhalothrin is formed by esterifying 3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2- dimethylcyclopropanecarboxylic acid with alpha-cyano-3-phenoxybenzyl alcohol, and it consists of a mixture of four stereoisomers. ...

This monograph focuses on the risks to human health from compounds of monomethylmercury and examines the data that have become available since the publication of Environmental Health Criteria 1: Mercury (WHO, ...

Tributyltin (TBT) compounds are organic derivatives of tetravalent tin. They are characterized by the presence of covalent bonds between carbon atoms and a tin atom and have the general formula (n-C4H9)3Sn-X (where X ...

Beryllium is a steel-grey, brittle metal, existing naturally only as the 9Be isotope. Its compounds are divalent. Beryllium has several unique properties. It is the lightest of all solid and chemically-stable substances, ...