Cas no 134-81-6 (diphenylethane-1,2-dione)

Diphenylethane-1,2-dione is an aromatic diketone offering high reactivity due to its conjugated carbonyl system. This property enables efficient participation in various organic reactions, including condensations and additions. Additionally, diphenylethane-1,2-dione exhibits a relatively low melting point, facilitating handling and processing of the compound.
diphenylethane-1,2-dione structure
diphenylethane-1,2-dione structure
Product Name:diphenylethane-1,2-dione
CAS No:134-81-6
MF:C14H10O2
MW:210.228003978729
MDL:MFCD00003080
CID:36330
PubChem ID:8651
Update Time:2026-04-22

diphenylethane-1,2-dione Chemical and Physical Properties

Names and Identifiers

    • Benzil
    • 1,2-Diphenylethane-1,2-dione
    • Benzil (1,2-diphenylethan-dion)
    • Diphenyl-alpha,beta-diketone
    • diphenyl-ethanedion
    • diphenyl-glyoxa
    • Ethanedione,diphenyl-
    • Glyoxal, diphenyl-
    • Wy 20910
    • Benzil Zone Refined (number of passes:22)
    • Diphenylethane-1,2-dione
    • 1,2-Diphenylethanedione
    • BIBENZOYL
    • CHC-12
    • DIBENZOYL
    • Dibenzoyl Zone Refined
    • Diphenylethanedione
    • Diphenylethanedione Zone Refined
    • Diphenylglyoxal
    • Diphenylglyoxal Zone Refined
    • Esacure KBO
    • Dibenzoyl Zone Refined (number of passes:22)
    • Diphenylethanedione Zone Refined (number of passes:22)
    • Diphenylglyoxal Zone Refined (number of passes:22)
    • wy-20910
    • Chc12Benzil
    • Benzil 98%
    • Benzil≥98%
    • Ethanedione, diphenyl-
    • Diphenyldiketon
    • 1,2-ethanedione, 1,2-diphenyl-
    • 1,2-diphenyl-ethane-1,2-dione
    • Diphenyl-.alpha.,.beta.-diketone
    • WURBFLDFSFBTLW-UHFFFAOYSA-N
    • C14H10O2
    • S85X61172J
    • 1,2-dione
    • EN300-19182
    • EC 205-157-0
    • EINECS 205-157-0
    • NSC4041
    • WLN: RVVR
    • Benzil, 98%
    • B0050
    • NS00004291
    • MFCD00003080
    • InChI=1/C14H10O2/c15-13(11-7-3-1-4-8-11)14(16)12-9-5-2-6-10-12/h1-10
    • B0221
    • J-006608
    • NSC220315
    • A887805
    • NSC 220315
    • Benzil(Diphenylethane-1,2-Dione)
    • NCGC00255924-01
    • C20226
    • Benzil Diphenylethanedione Diphenylglyoxal 1,2-Diphenylethanedione Dibenzoyl
    • DTXCID1024380
    • 103852-36-4
    • FT-0622670
    • 134-81-6
    • AKOS000120196
    • Benzil-Melting Point 94.90 degrees C
    • CS-0012125
    • BS-15243
    • diphenyl-alpha-beta-ketone
    • CCRIS 6179
    • 1,2-ETHANEDIONE,1,2-DIPHENYL BENZIL
    • Q818497
    • PHENYTOIN SODIUM IMPURITY B [EP IMPURITY]
    • Z104473066
    • AI3-00898
    • CHEBI:51507
    • PHENYTOIN IMPURITY B [EP IMPURITY]
    • Tox21_302031
    • NSC-220315
    • DTXSID3044380
    • Diphenylethanedione (Benzil)
    • CAS-134-81-6
    • Benzil (96 degrees C) Melting Point Standard
    • BDBM22722
    • NSC-4041
    • PHENYTOIN IMPURITY B (EP IMPURITY)
    • SCHEMBL66
    • Benzil - Melting Point 94.90 masculineC
    • F3096-2306
    • PHENYTOIN SODIUM IMPURITY B (EP IMPURITY)
    • AB-131/13435226
    • CHEMBL189886
    • UNII-S85X61172J
    • BENZIL [MI]
    • 1,2-Diphenyl-1,2-ethanedione
    • Phenytoin Imp. B (EP): Diphenylethanedione (Benzil)
    • STL283960
    • G81221
    • Benzil;Diphenylethanedione;Diphenylglyoxal;1,2-Diphenylethanedione;Dibenzoyl
    • 205-157-0
    • HMS3755K05
    • FB34685
    • Diphenylethanedione;Dibenzoyl
    • diphenylethane-1,2-dione
    • MDL: MFCD00003080
    • Inchi: 1S/C14H10O2/c15-13(11-7-3-1-4-8-11)14(16)12-9-5-2-6-10-12/h1-10H
    • InChI Key: WURBFLDFSFBTLW-UHFFFAOYSA-N
    • SMILES: O=C(C(C1C=CC=CC=1)=O)C1C=CC=CC=1
    • BRN: 608047

Computed Properties

  • Exact Mass: 210.06800
  • Monoisotopic Mass: 210.068
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 2
  • Heavy Atom Count: 16
  • Rotatable Bond Count: 3
  • Complexity: 230
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Surface Charge: 0
  • Tautomer Count: nothing
  • XLogP3: 3.4
  • Topological Polar Surface Area: 34.1

Experimental Properties

  • Color/Form: Yellow prismatic crystalline powder.
  • Density: 1,521 g/cm3
  • Melting Point: 94.0 to 97.0 deg-C
  • Boiling Point: 348°C(lit.)
  • Flash Point: Fahrenheit: 356 ° f
    Celsius: 180 ° c
  • Refractive Index: 1.5681 (estimate)
  • Solubility: <0.5g/l
  • Water Partition Coefficient: 0.5 g/L (20 oC)
  • Stability/Shelf Life: Stable. Combustible. Incompatible with strong oxidizing agents.
  • PSA: 34.14000
  • LogP: 2.75220
  • Sensitiveness: Sensitive to light
  • Solubility: Soluble in ethanol, ether, chloroform, ethyl acetate, benzene, toluene and nitrobenzene, insoluble in water.
  • Merck: 1078
  • Vapor Pressure: 1 mmHg ( 128.4 °C)

diphenylethane-1,2-dione Security Information

  • Symbol: GHS07
  • Prompt:warning
  • Signal Word:Warning
  • Hazard Statement: H315,H319,H335
  • Warning Statement: P261,P305+P351+P338
  • Hazardous Material transportation number:NONH for all modes of transport
  • WGK Germany:2
  • Hazard Category Code: 36/37/38
  • Safety Instruction: S26-S36-S37/39
  • FLUKA BRAND F CODES:10
  • RTECS:DD1925000
  • Hazardous Material Identification: Xi
  • TSCA:Yes
  • Risk Phrases:R36/37/38
  • Safety Term:S26;S36;S37/39
  • Storage Condition:Sealed and protected from light

diphenylethane-1,2-dione Customs Data

  • HS CODE:29143900
  • Customs Data:

    China Customs Code:

    29143900

diphenylethane-1,2-dione Pricemore >>

Related Categories No. Product Name Cas No. Purity Specification Price update time Inquiry
HE FEI BO MEI SHENG WU KE JI YOU XIAN ZE REN GONG SI
EB6536-100g
diphenylethane-1,2-dione
134-81-6 ≥99.5%
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¥160.00 元 2023-09-15
HE FEI BO MEI SHENG WU KE JI YOU XIAN ZE REN GONG SI
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SHANG HAI YI EN HUA XUE JI SHU Co., Ltd.
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diphenylethane-1,2-dione Production Method

diphenylethane-1,2-dione Suppliers

Tiancheng Chemical (Jiangsu) Co., Ltd
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(CAS:134-81-6)苯偶酰
Order Number:LE8694884;LE14293;LE3759
Stock Status:in Stock
Quantity:25KG,200KG,1000KG
Purity:99%
Pricing Information Last Updated:Friday, 20 June 2025 12:47
Price ($):discuss personally
Amadis Chemical Company Limited
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(CAS:134-81-6)diphenylethane-1,2-dione
Order Number:A887805
Stock Status:in Stock
Quantity:2.5kg
Purity:99%
Pricing Information Last Updated:Friday, 30 August 2024 11:22
Price ($):153.0
Suzhou Senfeida Chemical Co., Ltd
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(CAS:134-81-6)Benzil
Order Number:sfd19222
Stock Status:in Stock
Quantity:200kg
Purity:99.9%
Pricing Information Last Updated:Friday, 19 July 2024 14:38
Price ($):discuss personally

diphenylethane-1,2-dione Spectrogram

GC-MS
GC-MS
1H NMR 300 MHz DMSO
1H NMR
13C NMR
13C NMR

diphenylethane-1,2-dione Related Literature

Additional information on diphenylethane-1,2-dione

Diphenylethane-1,2-dione (CAS No. 134-81-6): A Comprehensive Overview of Its Chemistry, Applications, and Recent Research Developments

Diphenylethane-1,2-dione, with the chemical formula C14H10O2 and CAS number 134-81-6, is a significant organic compound that has garnered considerable attention in the field of chemical biology and pharmaceutical research. This dione derivative, also known as benzil, is characterized by its two carbonyl groups positioned symmetrically between two phenyl rings. Its unique structural features make it a versatile intermediate in organic synthesis, particularly in the development of various pharmacologically active compounds.

The compound's molecular structure consists of a central ethane backbone with two phenyl groups attached to the first and second carbon atoms, each bearing a carbonyl (C=O) group. This arrangement imparts remarkable reactivity, making diphenylethane-1,2-dione a valuable building block in the synthesis of more complex molecules. The presence of these reactive carbonyl groups allows for diverse chemical transformations, including condensation reactions, Michael additions, and enolate formation, which are pivotal in constructing intricate molecular architectures.

In recent years, diphenylethane-1,2-dione has been extensively studied for its potential applications in medicinal chemistry. One of the most notable areas of research involves its role as a precursor in the synthesis of nonsteroidal anti-inflammatory drugs (NSAIDs). The dione moiety can be strategically incorporated into drug molecules to enhance their pharmacological properties. For instance, derivatives of benzil have been explored as inhibitors of cyclooxygenase enzymes (COX), which are key targets in the development of NSAIDs. These studies have highlighted the compound's significance in modulating inflammatory pathways and its potential as a lead compound for novel therapeutic agents.

Moreover, diphenylethane-1,2-dione has found utility in the synthesis of chiral compounds, which are essential in pharmaceuticals due to their enantioselective properties. The dione group can serve as a chiral center or participate in asymmetric transformations to produce enantiomerically pure substances. This capability is particularly valuable in the development of drugs where the biological activity is highly dependent on the stereochemistry of the molecule. Recent advancements in catalytic asymmetric synthesis have enabled more efficient and scalable production of chiral derivatives of benzil, opening new avenues for drug discovery.

The compound's reactivity also extends to its applications in material science. For example, diphenylethane-1,2-dione can be used as a monomer or crosslinking agent in polymer chemistry. Its ability to undergo polymerization reactions allows for the creation of high-performance materials with tailored properties. These materials find applications in coatings, adhesives, and specialty plastics where thermal stability and mechanical strength are critical requirements. The incorporation of benzil derivatives into polymers has led to innovative solutions in industrial applications.

In academic research, diphenylethane-1,2-dione continues to be a subject of interest due to its role as a key intermediate in organic synthesis. Researchers have leveraged its structural features to develop novel synthetic methodologies that enhance efficiency and sustainability. For instance, green chemistry approaches have been explored to minimize waste and reduce energy consumption during the synthesis of benzil derivatives. These efforts align with global initiatives to promote environmentally friendly chemical processes.

The pharmaceutical industry has also benefited from the versatility of diphenylethane-1,2-dione. Beyond its use in NSAID development, the compound has been investigated for its potential antimicrobial and antifungal properties. Studies have shown that certain derivatives exhibit inhibitory effects against various pathogens by disrupting essential cellular processes. This opens up possibilities for developing new antimicrobial agents that could address emerging resistance issues.

The synthetic utility of diphenylethane-1,2-dione is further underscored by its role in heterocyclic chemistry. The dione group can participate in cyclization reactions to form five-membered or six-membered heterocycles, which are prevalent motifs in biologically active compounds. These heterocyclic structures have been explored for their potential as kinase inhibitors, protease inhibitors, and other therapeutic agents. The ability to construct complex heterocycles from benzil provides chemists with a powerful toolset for drug design.

In conclusion, Diphenylethane-1,2-dione (CAS No. 134-81-6) is a multifaceted compound with broad applications across chemistry and pharmaceutical research. Its unique structural features enable diverse synthetic transformations that are pivotal in developing new drugs and advanced materials. Recent research highlights its significance as an intermediate in medicinal chemistry, material science, and green chemistry initiatives. As scientific understanding continues to evolve, it is likely that diphenylethane-1,2-dione will remain a cornerstone compound in both academic and industrial research endeavors.

Recommended suppliers
Tiancheng Chemical (Jiangsu) Co., Ltd
(CAS:134-81-6)苯偶酰
LE8694884;LE14293;LE3759
Purity:99%/99%/99%
Quantity:25KG,200KG,1000KG/25KG,200KG,1000KG/25KG,200KG,1000KG
Price ($):Inquiry/Inquiry/Inquiry
Email
Amadis Chemical Company Limited
(CAS:134-81-6)diphenylethane-1,2-dione
A887805
Purity:99%
Quantity:2.5kg
Price ($):153.0
Email