Cas no 2051-07-2 (1,5-Bis-(4-methoxyphenyl)-3-pentadienone)

1,5-Bis-(4-methoxyphenyl)-3-pentadienone is a conjugated dienone compound characterized by its distinctive molecular structure featuring two 4-methoxyphenyl groups symmetrically attached to a pentadienone backbone. This compound is of interest in organic synthesis due to its extended π-conjugation system, which enhances its utility as an intermediate in the preparation of advanced materials, pharmaceuticals, and photoactive compounds. The methoxy substituents contribute to its electron-donating properties, influencing reactivity and solubility in organic solvents. Its well-defined structure and stability make it suitable for applications in cross-coupling reactions and as a building block for complex molecular frameworks. The compound is typically handled under controlled conditions due to its sensitivity to light and air.
1,5-Bis-(4-methoxyphenyl)-3-pentadienone structure
2051-07-2 structure
Product Name:1,5-Bis-(4-methoxyphenyl)-3-pentadienone
CAS No:2051-07-2
MF:C19H18O3
MW:294.344425678253
CID:84093
PubChem ID:715840
Update Time:2025-10-17

1,5-Bis-(4-methoxyphenyl)-3-pentadienone Chemical and Physical Properties

Names and Identifiers

    • Bis(4-methoxybenzylidene)acetone
    • 1,5-Bis-(4-methoxyphenyl)-3-pentadienone
    • 1,5-Bis(4-methoxyphenyl)penta-1,4-dien-3-one
    • bis(p-anisylidene)acetone
    • DIANISYLIDENEACETONE
    • 1,5-Bis(p-methoxyphenyl)-3-pentadienone
    • 1,5-Bis(4-methoxyphenyl)-1,4-pentadien-3-one
    • 1,5-Bis(p-methoxyphenyl)-1,4-pentadien-3-one
    • NSC 401196
    • NSC 677239
    • trans,trans-Bis(4-methoxystyryl) Ketone
    • DIANISYLIDENE ACETONE
    • DTXSID401347720
    • AKOS001325277
    • CHEBI:183767
    • D89083
    • 1,4-Pentadien-3-one, 1,5-bis(p-methoxyphenyl)-
    • NSC-401196
    • AS-69064
    • SCHEMBL2744101
    • AS-67184
    • C1T5NW58W3
    • B4467
    • (1E,4E)-1,5-Bis(4-methoxyphenyl)-1,4-pentadien-3-one #
    • F0415-0075
    • trans,trans-Bis(4-methoxybenzylidene)acetone
    • (E,E)-1,5-Bis(p-methoxyphenyl)penta-1,4-dien-3-one
    • trans,trans-1,5-Bis(4-methoxyphenyl)-1,4-pentadien-3-one
    • 1,5-Bis-(4-methoxy-phenyl)-penta-1,4-dien-3-one
    • 1,4-Pentadien-3-one, 1,5-bis(4-methoxyphenyl)-
    • MEGxp0_001779
    • di(4-Methoxybenzylidene)acetone
    • GO-Y-013
    • 1,5-di(4-methoxyphenyl)penta-1,4-dien-3-one
    • MFCD00014901
    • A873973
    • 37951-12-5
    • NSC-677239
    • NSC677239
    • UNII-C1T5NW58W3
    • (1E,4E)-1,5-bis(4-methoxyphenyl)-3-penta-1,4-dienone
    • CS-W014550
    • 1,4-Pentadien-3-one, 1,5-bis(4-methoxyphenyl)-, (1E,4E)-
    • di-p-Anisylideneacetone
    • Go-Y013
    • Z234853558
    • SCHEMBL2744098
    • A816101
    • Di-(4,4'-dimethoxy)-benzylidene-acetone
    • trans,trans-Bis(4-methoxybenzal)acetone
    • NCGC00336197-01
    • CHEMBL584437
    • HMS1552C13
    • (1E,4E)-1,5-bis(4-methoxyphenyl)penta-1,4-dien-3-one
    • 2051-07-2
    • IOZVKDXPBWBUKY-LQIBPGRFSA-N
    • (1E,4E)-1,5-Bis(4-methoxyphenyl)-1,4-pentadien-3-one
    • BDBM50488795
    • 50764-85-7
    • AB01134828-03
    • DB-289622
    • STK325157
    • BBL002419
    • MDL: MFCD00014901
    • Inchi: 1S/C19H18O3/c1-21-18-11-5-15(6-12-18)3-9-17(20)10-4-16-7-13-19(22-2)14-8-16/h3-14H,1-2H3/b9-3+,10-4+
    • InChI Key: IOZVKDXPBWBUKY-LQIBPGRFSA-N
    • SMILES: O(C)C1C=CC(/C=C/C(/C=C/C2C=CC(=CC=2)OC)=O)=CC=1
    • BRN: 1885379

Computed Properties

  • Exact Mass: 294.12600
  • Monoisotopic Mass: 294.125594
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 3
  • Heavy Atom Count: 22
  • Rotatable Bond Count: 6
  • Complexity: 348
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 2
  • Undefined Bond Stereocenter Count: 0
  • Surface Charge: 0
  • XLogP3: 4.1
  • Topological Polar Surface Area: 35.5

Experimental Properties

  • Color/Form: solid
  • Density: 1.128
  • Melting Point: 136-138 oC
  • Boiling Point: 492 oC
  • Flash Point: 244 oC
  • Refractive Index: 1.5490 (estimate)
  • PSA: 35.53000
  • LogP: 3.99950
  • Solubility: Insoluble
  • Vapor Pressure: Not available

1,5-Bis-(4-methoxyphenyl)-3-pentadienone Customs Data

  • HS CODE:2914509090
  • Customs Data:

    China Customs Code:

    2914509090

    Overview:

    2914509090 Ketones containing other oxygen-containing groups. VAT:17.0% Tax refund rate:9.0% Regulatory conditions:nothing MFN tariff:5.5% general tariff:30.0%

    Declaration elements:

    Product Name, component content, use to, Acetone declared packaging

    Summary:

    HS:2914509090 other ketones with other oxygen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

1,5-Bis-(4-methoxyphenyl)-3-pentadienone Pricemore >>

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