1-(5-Methyl-2-thienyl)ethanone

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Names

[ CAS No. ]:
13679-74-8

[ Name ]:
1-(5-Methyl-2-thienyl)ethanone

[Synonym ]:
Thiophene, 2-acetyl-5-methyl-
1-(5-Meth​yl-2-thie​nyl)ethanone
1-(5-Methyl-2-thienyl)ethanone
2-Acetyl-5-methylthiophene
T5SJ BV1 E1
Ethanone, 1-(5-methyl-2-thienyl)-
1-(5-methylthien-2-yl)ethanone
Methyl 5-methyl-2-thienyl ketone
1-(5-Methyl-2-thienyl)ethan-1-one
1-(5-methylthiophen-2-yl)ethanone
MFCD00014529
EINECS 237-181-2
Ketone, methyl 5-methyl-2-thienyl

Chemical & Physical Properties

[ Density]:
1.1±0.1 g/cm3

[ Boiling Point ]:
234.9±20.0 °C at 760 mmHg

[ Melting Point ]:
24-28 °C(lit.)

[ Molecular Formula ]:
C7H8OS

[ Molecular Weight ]:
140.203

[ Flash Point ]:
95.8±21.8 °C

[ Exact Mass ]:
140.029587

[ PSA ]:
45.31000

[ LogP ]:
1.71

[ Vapour Pressure ]:
0.1±0.5 mmHg at 25°C

[ Index of Refraction ]:
1.536

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
OB4972000
CHEMICAL NAME :
Ketone, methyl 5-methyl-2-thienyl
CAS REGISTRY NUMBER :
13679-74-8
BEILSTEIN REFERENCE NO. :
0110854
LAST UPDATED :
199612
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C7-H8-O-S
MOLECULAR WEIGHT :
140.21
WISWESSER LINE NOTATION :
T5SJ B1 EV1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
230 mg/kg
TOXIC EFFECTS :
Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - other changes
REFERENCE :
APFRAD Annales Pharmaceutiques Francaises. (SPPIF, B.P.22, F-41353 Vineuil, France) V.1- 1943- Volume(issue)/page/year: 5,16,1947

Safety Information

[ Personal Protective Equipment ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ Hazard Codes ]:
Xn: Harmful;Xi: Irritant;

[ Risk Phrases ]:
R20/21/22

[ Safety Phrases ]:
S36/37-S22

[ RIDADR ]:
UN 3335 9

[ WGK Germany ]:
3

[ RTECS ]:
OB4972000

[ HS Code ]:
2934999090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • methylthiol
  • Ethanoic anhydride
  • Acetyl chloride

DownStream

  • Thiophene-2,5-dicarboxylic acid
  • 5-Methly-2-thiophenecarboxylic acid
  • 2-Ethyl-5-methylthiophene
  • 1,3-Butanedione,4,4,4-trifluoro-1-(5-methyl-2-thienyl)-
  • 5-Acetyl-2-thiophenecarboxylic acid
  • 5-METHYL-THIOPHENE-2-CARBONYL CHLORIDE
  • 2-[3,5-bis(5-methylthiophen-2-yl)phenyl]-5-methylthiophene
  • 1-(4-bromo-5-methylthiophen-2-yl)ethanone
  • 2-(5-methylthiophen-2-yl)acetic acid

Customs

[ HS Code ]: 2934999090

[ Summary ]:
2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Articles

Acylation studies in the thiophene and furan series. IV. Strong inorganic oxyacids as catalysts. Hartough HD and Kosak AI.

J. Am. Chem. Soc. 69(12) , 3093-3096, (1947)

Palladium-catalysed direct 3-or 4-arylation of thiophene derivatives using aryl bromides. Dong JJ, et al.

Tetrahedron 50(23) , 2778-2781, (2009)

Efficient guaiazulene and chamazulene syntheses involving [6+4] cycloadditions. Mukherjee D, et al.

J. Am. Chem. Soc. 1010(1) , 251-252, (1979)


More Articles

Related Compounds

  • 2-Amino-1-(5-methyl-2-thienyl)ethanone
  • 2,2,2-Trifluoro-1-(5-methyl-2-thienyl)ethanone
  • 1-[(5-Methyl-2-thienyl)methyl]piperazine
  • 1-(5-methyl-[2]thienyl)-2-[2]thienylmethoxy-ethane
  • 1-(5-Methyl-2-thienyl)-N-(3-pyridinylmethyl)methanamine
  • 1-(5-Chloro-4-methyl-2-thienyl)ethanone