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Dimethyl sulphoxide extrapure - Finar, 1Liter Bottle, 98%
Product Specifications
| Availability | In Stock |
| Country of origin | Made in India |
| Grade | Technical Grade |
| Grade Standard | IP |
| Packaging | 1Liter Bottle |
| Purity | 98% |
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545E, BKR NAGAR,SATHY ROAD, Sri Shakti Bakery, Gandhipuram, Coimbatore, Coimbatore, Tamil Nadu, 641012
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Product Details
Dimethyl sulfoxide (DMSO) is an organosulfur compound with the formula (CH3)2SO. This colorless liquid is the sulfoxide most widely used commercially. It is an important polar aprotic solvent that dissolves both polar and nonpolar compounds and is miscible in a wide range of organic solvents as well as water. It has a relatively high boiling point. DMSO is metabolised to compounds that leave a garlic-like taste in the mouth after DMSO is absorbed by skin.[5] In terms of chemical structure, the molecule has idealized Cs symmetry. It has a trigonal pyramidal molecular geometry consistent with other three-coordinate S(IV) compounds,[6] with a nonbonded electron pair on the approximately tetrahedral sulfur atom. Synthesis and production[edit] Dimethyl sulfoxide was first synthesized in 1866 by the Russian scientist Alexander Zaytsev, who reported his findings in 1867.[7] Its modern use as an industrial solvent began through popularization by Thor Smedslund at the Stepan Chemical Company.[8] Dimethyl sulfoxide is produced industrially from dimethyl sulfide, a by-product of the Kraft process, by oxidation with oxygen or nitrogen dioxide.[9] Reactions[edit]Reactions with electrophiles[edit] The sulfur center in DMSO is nucleophilic toward soft electrophiles and the oxygen is nucleophilic toward hard electrophiles. With methyl iodide it forms trimethylsulfoxonium iodide, [(CH3)3SO]I: (CH3)2SO + CH3I → [(CH3)3SO]I This salt can be deprotonated with sodium hydride to form the sulfur ylide: [(CH3)3SO]I + NaH → (CH3)2S(CH2)O + NaI + H2Acidity[edit] The methyl groups of DMSO are only weakly acidic, with a pKa = 35. For this reason, the basicities of many weakly basic organic compounds have been examined in this solvent. Deprotonation of DMSO requires strong bases like lithium diisopropylamide and sodium hydride. Stabilization of the resultant carbanion is provided by the S(O)R group. The sodium derivative of DMSO formed in this way is referred to as dimsyl sodium. It is a base, e.g., for the deprotonation of ketones to form sodium enolates, phosphonium salts to form Wittig reagents, and formamidinium salts to form diaminocarbenes. It is also a potent nucleophile.
545E, BKR NAGAR,SATHY ROAD, Sri Shakti Bakery, Gandhipuram, Coimbatore, Coimbatore, Tamil Nadu, 641012
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