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1-bromo-2-chlorobenzene 1-bromo-3-chlorobenzene 1-bromo-4-chlorobenzene Molecular formula: BrC 6 H 4 Cl Molar mass: 191.45 g/mol CAS number: 694-80-4: 108-37-2: 106-39-8: ChemSpider: 12230: 13875377: 7518: PubChem CID: 12754: 7928: 7806: Properties Melting point: −13 °C (260 K) −22 °C (251 K) 63–67 °C (336–340 K) Boiling point: 203 ...
Phenylsilane is produced in two steps from Si(OEt) 4. In the first step, phenylmagnesium bromide is added to form Ph−Si(OEt) 3 via a Grignard reaction. Reduction of the resulting Ph−Si(OEt) 3 product with LiAlH 4 affords phenylsilane. [2] Ph−MgBr + Si(OEt) 4 → Ph−Si(OEt) 3 + MgBr(OEt) 4 Ph−Si(OEt) 3 + 3 LiAlH 4 → 4 Ph−SiH 3 + 3 ...
Protonated derivatives are isolable, e.g., [C 5 H 5 NOH]Cl. [3] Further demonstrating its (feeble) basicity, pyridine-N-oxide also serves as a ligand in coordination chemistry. A host of transition metal complexes of pyridine-N-oxides are known. Treatment of the pyridine-N-oxide with phosphorus oxychloride gives 4- and 2-chloropyridines. [8]
Chemical formula Synonyms CAS number C 10 H 16 N 2 O 8: Ethylenediaminetetraacetic acid (EDTA): 6381–92–6 C 12 H 22 O 11: sucrose: 57–50–1 C 18 H 29 O 3 S: sodium dodecyl benzenesulfonate: 2155–30–0
1,3-Dimethyl-2-imidazolidinone (DMI) is a cyclic urea used as a high-boiling polar aprotic solvent. [2] This colourless, highly polar solvent has high thermal and chemical stability. Together with homologous solvent DMPU , since the 1970s it serves as an analog of tetramethylurea .
Methylpyridinium is prepared by treating pyridine with dimethylsulfate: [2]. C 5 H 5 N + (CH 3 O) 2 SO 2 → [C 5 H 5 NCH 3] + CH 3 OSO − 3. It is found in some coffee products. [3] It is not present in unroasted coffee beans, but is formed during roasting from its precursor chemical, trigonelline. [3]
CAS Number. 96-80-0 ... moderately toxic if absorbed through skin as well as being corrosive to eyes and skin. [1] ...
4-Hexylresorcinol is an organic compound with local anaesthetic, antiseptic, and anthelmintic properties. [ 2 ] As an antiseptic , it is marketed as S.T.37 by Numark Laboratories, Inc. (in a 0.1% solution) for oral pain relief and as a topical antiseptic.