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2-Acetylthiophene

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2-Acetylthiophene Basic information
2-Acetylthiophene Chemical Properties
  • Melting point:10-11 °C(lit.)
  • Boiling point:214 °C(lit.)
  • Density 1.168 g/mL at 25 °C(lit.)
  • vapor pressure 2.7 hPa (50 °C)
  • refractive index n20/D 1.565(lit.)
  • Flash point:196 °F
  • storage temp. Store below +30°C.
  • solubility 14g/l
  • form Liquid
  • color Clear pale yellow to light brown
  • Water Solubility Insoluble in water.
  • Sensitive Light Sensitive
  • BRN 107910
  • InChIKeyWYJOVVXUZNRJQY-UHFFFAOYSA-N
  • CAS DataBase Reference88-15-3(CAS DataBase Reference)
  • NIST Chemistry ReferenceEthanone, 1-(2-thienyl)-(88-15-3)
  • EPA Substance Registry SystemEthanone, 1-(2-thienyl)- (88-15-3)
Safety Information
  • Hazard Codes T,Xi,Xn
  • Risk Statements 25-23/24/25-20/21/22
  • Safety Statements 45-38-36/37/39-28-36
  • RIDADR UN 2810 6.1/PG 2
  • WGK Germany 3
  • RTECS OB6300000
  • F 13
  • Autoignition Temperature265 °C DIN 51794
  • Hazard Note Irritant
  • TSCA Yes
  • HazardClass 6.1
  • PackingGroup II
  • HS Code 29349990
  • ToxicityLD50 orally in Rabbit: 25 - 200 mg/kg LD50 dermal Rat 370 mg/kg
MSDS
2-Acetylthiophene Usage And Synthesis
  • Description2-Acetylthiophene occurs naturally in kohlrabi. It has a sulfurous nutty hazelnut odor. It can be used as a food additive. It is also used as an intermediate to produce drugs, such as Tiamonium Iodide, Suprofan, Stepronin, Tenonitrozole, Namirotene, etc.
  • Chemical Propertiesclear colorless to slightly yellow liquid
  • Synthesis Reference(s)Organic Syntheses, Coll. Vol. 2, p. 8, 1943
    The Journal of Organic Chemistry, 36, p. 540, 1971 DOI: 10.1021/jo00803a011
    Tetrahedron Letters, 40, p. 3109, 1999 DOI: 10.1016/S0040-4039(99)00476-1
  • Safety ProfilePoison by intraperitoneal route. A flammable liquid. When heated to decomposition emits toxic fumes of SOx,.
  • Purification MethodsFractionally distil the thiophene through a 12-plate column, and fraction b 77o/4mm is collected. Also wet the acetylthiophene in order to remove and free thiophene which forms an azeotrope with H2O, b 68o. Store it in a brown bottle, and the clear colourless liquid remains thus for extended periods. [Kosak & Hartough Org Synth Coll Vol III 14 1955, Hartough & Kosak J Am Chem Soc 69 3093 1947.] The red 4-nitrophenylhydrazone crystallises from EtOH with m 181-182o. [Beilstein 17/9 V 387.]
2-Acetylthiophene Preparation Products And Raw materials
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