| Identification | More | [Name]
2,4-Dimethylthiazole | [CAS]
541-58-2 | [Synonyms]
2,4-DIMETHYL-1,3-THIAZOLE
2,4-DIMETHYLTHIAZOLE
2,4-METHYLTHIAZOLE
2,4-dimethyl-thiazol
2 4-DIMETHYLTHIAZOLE 95+%
2,4-Dimethylthiazole,97%
dimethylthiazole,2,4-dimethylthiazole
Thiazole, 2,4-dimethyl-
2,4-DIMETHYLTHIAZOLE 99+%
2,4-DIMETHYL THIAZOLE FEMA NO.-------- | [EINECS(EC#)]
208-786-9 | [Molecular Formula]
C5H7NS | [MDL Number]
MFCD00014509 | [Molecular Weight]
113.18 | [MOL File]
541-58-2.mol |
| Chemical Properties | Back Directory | [Appearance]
Colorless to light yellow liqui | [Melting point ]
272 °C | [Boiling point ]
144-146 °C719 mm Hg(lit.) | [density ]
1.056 g/mL at 25 °C(lit.)
| [refractive index ]
n20/D 1.509(lit.)
| [Fp ]
109 °F
| [storage temp. ]
−20°C
| [form ]
Liquid | [pka]
pK1:3.98 (25°C,μ=0.1) | [color ]
Clear colorless to light yellow | [Specific Gravity]
1.06 | [Odor]
at 0.10 % in dipropylene glycol. coffee tea beefy roasted barley | [Odor Type]
coffee | [Water Solubility ]
Slightly soluble in water | [Detection Methods]
GC | [BRN ]
106414 | [LogP]
0.361 (est) | [CAS DataBase Reference]
541-58-2(CAS DataBase Reference) | [NIST Chemistry Reference]
Thiazole, 2,4-dimethyl-(541-58-2) | [EPA Substance Registry System]
541-58-2(EPA Substance) |
| Hazard Information | Back Directory | [Chemical Properties]
Colorless to light yellow liqui | [Uses]
2,4-Dimethylthiazole is a substance used in the preparation of insects repellant. It also functions as an anesthetic for aquatic animals. 2,4-Dimethylthiazole is a flavor component of peanut oils. | [Definition]
ChEBI: 2,4-Dimethylthiazole is a member of thiazoles. | [Synthesis Reference(s)]
Synthesis, p. 696, 1976 DOI: 10.1055/s-1976-24165 | [Synthesis]
GENERAL METHOD: Thioacetamide (0.75 g, 10 mmol) and bromoacetone (1.99 g, 10 mmol) were dissolved in 5 mL of DMF in a 20 mL pressure tube. The reaction mixture was sealed and heated in an oil bath at 60 °C for 1 hour. After the reaction was completed, the reaction mixture was diluted with saturated aqueous ammonium chloride solution. Subsequently, the target product 2,4-dimethylthiazole was extracted with ethyl acetate. The combined organic layers were dried with anhydrous magnesium sulfate, filtered and concentrated. Finally, the crude product was purified by silica gel column chromatography (eluent: hexane/ethyl acetate) to afford 2,4-dimethylthiazole in 99% yield as a white solid. | [References]
[1] Tetrahedron, 2013, vol. 69, # 51, p. 10990 - 10995 |
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