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Cylinder of methanethiol gas. Methanethiol is mainly used to produce the essential amino acid methionine, which is used as a dietary component in poultry and animal feed. [10] Methanethiol is also used in the plastic industry as a moderator for free-radical polymerizations [10] and as a precursor in the manufacture of pesticides.
Dimethyl sulfide has a characteristic odor commonly described as cabbage-like.It becomes highly disagreeable at even quite low concentrations. Some reports claim that DMS has a low olfactory threshold that varies from 0.02 to 0.1 ppm [clarification needed] between different persons, but it has been suggested that the odor attributed to dimethyl sulfide may in fact be due to disulfides ...
DMSP is broken down by marine microbes to form two major volatile sulfur products, each with distinct effects on the environment. One of its breakdown products is methanethiol (CH 3 SH), which is assimilated by bacteria into protein sulfur. Another volatile breakdown product is dimethyl sulfide (CH 3 SCH 3; DMS).
This reaction is rapid and stoichiometric, with the addition of one mole of thiol releasing one mole of TNB. The TNB 2− is quantified in a spectrophotometer by measuring the absorbance of visible light at 412 nm, using an extinction coefficient of 14,150 M −1 cm −1 for dilute buffer solutions, [4] [5] and a coefficient of 13,700 M −1 cm −1 for high salt concentrations, such as 6 M ...
The nonbonding electrons on sulfur are delocalized into the π-system. As a consequence, thiophene exhibits few properties expected for a sulfide – thiophene is non-nucleophilic at sulfur and, in fact, is sweet-smelling. Upon hydrogenation, thiophene gives tetrahydrothiophene, C 4 H 8 S, which indeed does behave as a typical sulfide.
B 2 H 6 + 2 S(CH 3) 2 → 2 BH 3 ·S(CH 3) 2. It can be purified by bulb to bulb vacuum transfer. Although a structure of BMS has not been determined crystallographically, (pentafluorophenyl)-borane dimethylsulfide (C 6 F 5 BH 2 ·S(CH 3) 2), has been examined by X-ray crystallography. [4] The boron atom adopts a tetrahedral molecular geometry.
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