Uses
ChemicalBook > CAS DataBase List > 4-PHENYLETHYNYLPHTHALIC ANHYDRIDE

4-PHENYLETHYNYLPHTHALIC ANHYDRIDE

Uses
4-PHENYLETHYNYLPHTHALIC ANHYDRIDE Structure
4-PHENYLETHYNYLPHTHALIC ANHYDRIDE
  • CAS No.119389-05-8
  • Chemical Name:4-PHENYLETHYNYLPHTHALIC ANHYDRIDE
  • CBNumber:CB5334539
  • Molecular Formula:C16H8O3
  • Formula Weight:248.23
  • MOL File:119389-05-8.mol
4-PHENYLETHYNYLPHTHALIC ANHYDRIDE Property
  • Melting point 152 °C
  • Boiling point 466.9±28.0 °C(Predicted)
  • Density 1.38±0.1 g/cm3(Predicted)
  • storage temp. Inert atmosphere,Room Temperature
  • Water Solubility Practically insoluble in water
  • form powder to crystal
  • color White to Yellow to Green
  • InChI InChI=1S/C16H8O3/c17-15-13-9-8-12(10-14(13)16(18)19-15)7-6-11-4-2-1-3-5-11/h1-5,8-10H
  • InChIKey UPGRRPUXXWPEMV-UHFFFAOYSA-N
  • SMILES C1(=O)C2=C(C=C(C#CC3=CC=CC=C3)C=C2)C(=O)O1
  • EPA Substance Registry System 1,3-Isobenzofurandione, 5-(phenylethynyl)- (119389-05-8)
Safety
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordWarning
  • Hazard statements H315-H319
  • Precautionary statements P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
4-PHENYLETHYNYLPHTHALIC ANHYDRIDE Price More Price(2)
  • Brand: TCI Chemicals (India)
  • Product number: P1437
  • Product name : 4-Phenylethynylphthalic Anhydride
  • Purity: min. 98.0 %
  • Packaging: 5G
  • Price: ₹3900
  • Updated: 2022/05/26
  • Buy: Buy
  • Brand: TCI Chemicals (India)
  • Product number: P1437
  • Product name : 4-Phenylethynylphthalic Anhydride
  • Purity: min. 98.0 %
  • Packaging: 25G
  • Price: ₹16700
  • Updated: 2022/05/26
  • Buy: Buy

4-PHENYLETHYNYLPHTHALIC ANHYDRIDE Chemical Properties,Usage,Production

  • Uses 4-Phenylethynylphthalic Anhydride is a useful research chemical.
  • Description 4-Phenylethynylphthalic anhydride (PEPA) is a phthalic anhydride derivative with a phenylethynyl substituent in the 4-position.PEPA is commonly used as a reactive capping agent for polyimide synthesis and aromatic oligo-polyimides. Fluorinated aromatic oligoimides terminated with a phenylethynyl substituent melt completely in the range of 250-350 °C to form a low viscosity liquid. The melt viscosity of oligoimides increases with increasing molecular weight. After thermal curing at 371 °C, the thermoset polyimide resins produced show good thermal and mechanical properties. They showed a high glass transition temperature (Tg) of 300 °C, a flexural strength of 135.5 MPa, a flexural modulus of 3.1 GPa, a tensile strength of 65.7 MPa, and an elongation at break of 3.9%.
  • Chemical Properties Light yellow to light yellow-green crystal or powder
  • Preparation The preparation of 4-phenylethynylphthalic anhydride is as follows:4-phenyl ethynyl dimethyl phthalate (33.6 g) was suspended in a mixed medium comprising water and methanol and a 25% by mass aqueous solution of sodium hydroxide (40 g) was dropwise added thereto with stirring. The resultant reaction mixture was stirred at 60° C. for 3 hours and, then, after confirming the completion of the reaction, cooled to the inside temperature of 30° C. Thereafter, 1 g of active carbon was added thereto, and, then, stirred for 30 minutes maintaining the same temperature. The resultant mixture was filtered to remove the active carbon, and rinsed with water. The filtrate and a rinsing solution were combined and, then, toluene and ethyl acetate were added to the resultant mixture. Concentrated hydrochloric acid (28 g) was dropwise added to the resultant 2-layered reaction mixture. The mixture was stirred for 30 minutes at room temperature and was allowed to stand, so that an organic layer containing 4-phenyl ethynyl phthalic acid was separated. After partially concentrating the organic layer, acetic anhydride (17 g) was added thereto, and the reaction mixture was refluxed with heating for 4 hours. After the reaction was completed, the resultant reaction mixture was cooled, so that 4-phenyl ethynyl phthalic anhydride was precipitated as a crystal. The crystal was filtered, rinsed and dried, to thereby obtain 26.6 g of 4-phenyl ethynyl phthalic anhydride as a pale yellow crystal. The yield was 94% on the basis of 4-phenyl ethynyl dimethyl phthalate.

    119389-05-8.png

4-PHENYLETHYNYLPHTHALIC ANHYDRIDE Preparation Products And Raw materials
Raw materials
Preparation Products
4-PHENYLETHYNYLPHTHALIC ANHYDRIDE Suppliers
Global(198)Suppliers
  • Supplier：
    Mascot I.E.Co .,Ltd.
  • Tel：+86-0519-85010339<br/>+8613584504415
  • Email：info@mascotchem.com
  • Country：China
  • ProdList：327
  • Advantage：58
  • Supplier：
    Sholon Chem-Tech Co.,Ltd
  • Tel：+86-15312550623;<br/>+8619901505185
  • Email：amy.yang@sholonchem.com
  • Country：China
  • ProdList：528
  • Advantage：58
  • Supplier：
    Henan Fengda Chemical Co., Ltd
  • Tel：+86-371-86557731<br/>+86-13613820652
  • Email：info@fdachem.com
  • Country：China
  • ProdList：20235
  • Advantage：58
  • Supplier：
    Capot Chemical Co.,Ltd.
  • Tel：+86-（0）57185586718<br/>+86-13336195806
  • Email：sales@capot.com
  • Country：China
  • ProdList：29730
  • Advantage：60
  • Supplier：
    Henan Tianfu Chemical Co.,Ltd.
  • Tel：+86-0371-55170693<br/>+86-19937530512
  • Email：info@tianfuchem.com
  • Country：China
  • ProdList：21628
  • Advantage：55
4-PHENYLETHYNYLPHTHALIC ANHYDRIDE Spectrum
119389-05-8, 4-PHENYLETHYNYLPHTHALIC ANHYDRIDERelated Search:
  • 119389-05-8
  • Functionalized Acetylenes
  • Acetylenes
  • strong recommend
  • 有机硅
  • 医用原料
  • 化学试剂
  • 化工中间体
  • 高端化学
  • 有机化工
  • 大化工产品
  • 中间体产品
  • 其他原料
  • 酸酐类
  • 酸酐
  • 精细化学品
  • 树状分子砌块
  • 苯酐类
  • Acetylenes
  • Functionalized Acetylenes
  • 4-苯乙炔苯酐(PEPA)
  • 4-(2-苯基乙炔基)邻苯二甲酸酐
  • 4-苯乙炔苯酐(4-苯基乙炔基邻苯二甲酸酐)
  • 4-苯基乙炔基邻苯二甲酸酐(PEPA))
  • 4-苯基炔基邻苯二甲酸酐
  • 4-PHENYLETHYNYLPHTHALIC ANHYDRIDE 4-苯基乙炔基邻苯二甲酸酐
  • 4-苯基乙炔基邻苯二甲酸酐
  • 4-苯基乙炔基邻苯二甲酸酐,4-苯乙炔苯酐
  • 4-苯乙炔基苯酐
  • 4-苯乙炔基苯酐(4-PEPA)
  • 4-苯乙烯基苯酐
  • 4-苯乙炔苯酐 100G
  • 4-苯基乙炔基邻苯二甲酸酐(4-PEPA)
  • 4-苯乙炔苯酐
  • 119389-05-8
  • (4-PEPA) 4-PHENYLETHYNYLPHTHALIC ANHYDRIDE
  • 4-Phenylethynylphthalic anhydride (PEPA)
  • 4-PHENYLETHYNYL PHTHALIC ANHYDRIDE(4-PEPA) 119389-05-8
  • 4-PhenylethynylphthalicAnhydride&gt
  • 4-(PHENYLETHYNYL)PHTHALIC ANHYDRIDE, 98%4-(PHENYLETHYNYL)PHTHALIC ANHYDRIDE, 98%4-(PHENYLETHYNYL)PHTHALIC ANHYDRIDE, 98%4-(PHENYLETHYNYL)PHTHALIC ANHYDRIDE, 98%
  • 5-(Phenylethynyl)isobenzofuran-1,3-dione
  • 4-Pheneylethynylphthalic anhydride
  • 5-(2-Phenylethynyl)-1,3-isobenzofurandione
  • 5-(phenylethynyl)-2-benzofuran-1,3-dione
  • 4-(Phenylethynyl)phthalic
  • 4-phenylethynylphthalic anhydride(4-PEPA)
  • Phenylethynylphthalic Anhydride
  • 1,3-Isobenzofurandione, 5-(phenylethynyl)-
  • 1,3-Isobenzofurandione, 5-(2-phenylethynyl)-
  • 4-phenylethylphthalic anhydride
  • 5-(Phenylethynyl)-1,3-isobenzofurandione
  • 4-(Phenylethynyl)-1,2-benzenedicarboxylic anhydride
  • 4-Phenylethynylphthalic anhydride ,98%
  • 4-PHENYLETHYNYLPHTALIC ANHYDRIDE
  • 5-Phenylethynyl-phthalic anhydride
  • 3-Phenylethynylphthalic anhydride
  • 4-(2-PHENYLETHYNYL)PHTHALIC ANHYDRIDE
  • 4-PHENYLETHYNYLPHTHALIC ANHYDRIDE

Home

My