Cas no 2604-45-7 (2,3,5,6-Tetramethylbenzoic acid)

2,3,5,6-Tetramethylbenzoic acid is a substituted benzoic acid derivative characterized by four methyl groups positioned symmetrically on the aromatic ring. This structural configuration enhances its steric hindrance and influences its reactivity, making it a valuable intermediate in organic synthesis, particularly for the preparation of hindered esters and metal-organic frameworks. The compound exhibits improved thermal stability and solubility in organic solvents compared to unsubstituted benzoic acid, facilitating its use in high-temperature reactions and specialized chemical processes. Its well-defined symmetry and electron-donating methyl groups also make it a useful building block for designing ligands in coordination chemistry and advanced materials research.
2,3,5,6-Tetramethylbenzoic acid structure
2604-45-7 structure
Product Name:2,3,5,6-Tetramethylbenzoic acid
CAS No:2604-45-7
MF:C11H14O2
MW:178.227663516998
CID:269718
PubChem ID:17452
Update Time:2025-10-30

2,3,5,6-Tetramethylbenzoic acid Chemical and Physical Properties

Names and Identifiers

    • 2,3,5,6-Tetramethylbenzoic acid
    • Benzoic acid, 2,3,5,6-tetramethyl-
    • 2,3,5,6-tetramethylbenzoic acid(SALTDATA: FREE)
    • EINECS 220-015-8
    • CAA60445
    • AKOS000162668
    • EN300-7423654
    • Benzoic acid,3,5,6-tetramethyl-
    • NSC 409541
    • TimTec1_001603
    • 2 3 5 6-TETRAMETHYLBENZOIC ACID 98
    • 4-09-00-01894 (Beilstein Handbook Reference)
    • 2, 3, 5, 6-tetramethylbenzoic acid
    • HMS1538I19
    • J-016234
    • SCHEMBL238022
    • 2604-45-7
    • AE-562/40723590
    • NSC-409541
    • BS-22138
    • 2,5,6-Tetramethylbenzoic acid
    • NCGC00174256-01
    • NS00028023
    • Cambridge id 5101344
    • DTXSID30180687
    • BRN 2328778
    • D83799
    • Z277540128
    • NSC409541
    • 2,3,5,6-Tetramethyl benzoic acid
    • UTY2MW5SWY
    • CS-0204342
    • 2,3,5,6-TETRAMETHYLBENZOICACID
    • FT-0609440
    • MFCD00013981
    • STIDRZRESMTQBD-UHFFFAOYSA-N
    • 2,3,5,6-Tetramethylbenzoic acid, 98%
    • STL433513
    • DTXCID70103178
    • MDL: MFCD00013981
    • Inchi: 1S/C11H14O2/c1-6-5-7(2)9(4)10(8(6)3)11(12)13/h5H,1-4H3,(H,12,13)
    • InChI Key: STIDRZRESMTQBD-UHFFFAOYSA-N
    • SMILES: OC(C1C(C)=C(C)C=C(C)C=1C)=O

Computed Properties

  • Exact Mass: 178.09942
  • Monoisotopic Mass: 178.099
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 1
  • Hydrogen Bond Acceptor Count: 2
  • Heavy Atom Count: 13
  • Rotatable Bond Count: 1
  • Complexity: 186
  • 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
  • XLogP3: 2.9
  • Topological Polar Surface Area: 37.3

Experimental Properties

  • Density: 1.066
  • Melting Point: 178-181?°C(lit.)
  • Boiling Point: 310°Cat760mmHg
  • Flash Point: 145.5°C
  • Refractive Index: 1.54
  • PSA: 37.3
  • LogP: 2.61840
  • Solubility: Not determined

2,3,5,6-Tetramethylbenzoic acid Security Information

  • WGK Germany:3
  • RTECS:DH6835100

2,3,5,6-Tetramethylbenzoic acid Pricemore >>

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2,3,5,6-Tetramethylbenzoic acid Related Literature

Additional information on 2,3,5,6-Tetramethylbenzoic acid

Comprehensive Overview of 2,3,5,6-Tetramethylbenzoic Acid (CAS No. 2604-45-7): Properties, Applications, and Industry Insights

2,3,5,6-Tetramethylbenzoic acid (CAS No. 2604-45-7) is a specialized organic compound belonging to the class of methyl-substituted benzoic acids. This white crystalline powder is gaining attention in pharmaceutical, agrochemical, and material science research due to its unique structural properties. The compound's molecular formula is C11H14O2, with a molecular weight of 178.23 g/mol. Its distinctive tetramethyl substitution pattern on the benzene ring makes it particularly valuable for studying steric effects in organic reactions.

Recent searches in scientific databases and AI-powered research tools reveal growing interest in "2,3,5,6-Tetramethylbenzoic acid solubility" and "CAS 2604-45-7 synthesis methods". Researchers are particularly focused on its potential as a building block for advanced materials and its role in crystal engineering. The compound's melting point ranges between 165-168°C, and it shows limited solubility in water but good solubility in organic solvents like ethanol and dimethyl sulfoxide (DMSO), making it suitable for various organic transformations.

In pharmaceutical applications, 2,3,5,6-Tetramethylbenzoic acid serves as a key intermediate for developing novel drug candidates. Its sterically hindered structure is being explored for creating targeted drug delivery systems, especially in cancer research where molecular shape plays a crucial role in receptor binding. Current studies investigate its potential as a precursor for non-steroidal anti-inflammatory drugs (NSAIDs) with improved selectivity profiles.

The agrochemical industry utilizes CAS 2604-45-7 in developing next-generation pesticides and plant growth regulators. Its methyl-rich structure contributes to enhanced lipid solubility, improving the bioavailability of active ingredients. Recent patents highlight its incorporation into sustainable crop protection formulations, aligning with the global trend toward environmentally friendly agriculture.

Material scientists value 2,3,5,6-Tetramethylbenzoic acid for its potential in creating organic semiconductors and metal-organic frameworks (MOFs). The compound's rigid, symmetrical structure makes it an excellent candidate for designing porous crystalline materials with applications in gas storage and separation technologies. Research published in 2023 demonstrates its effectiveness in creating luminescent materials for OLED applications.

Analytical characterization of 2604-45-7 typically involves HPLC analysis, mass spectrometry, and NMR spectroscopy. The compound shows characteristic peaks in 1H NMR (δ 2.25 ppm for methyl groups and δ 12.1 ppm for carboxylic proton) and 13C NMR spectra, which serve as important quality control markers. Recent advancements in AI-assisted molecular property prediction have enabled more accurate modeling of its behavior in various chemical environments.

Storage and handling recommendations for 2,3,5,6-Tetramethylbenzoic acid include keeping the compound in tightly sealed containers under inert atmosphere at room temperature. While not classified as hazardous under standard conditions, proper laboratory practices should be followed. The compound's stability under different conditions is a frequent search topic, with particular interest in its thermal decomposition profile and photostability.

The global market for methyl-substituted benzoic acids is projected to grow at 5.8% CAGR through 2030, driven by demand from the pharmaceutical and specialty chemicals sectors. CAS 2604-45-7 occupies a niche position in this market, with current research focusing on green chemistry approaches to its synthesis. Recent publications highlight microwave-assisted and continuous flow methods that improve yield while reducing environmental impact.

Regulatory status of 2,3,5,6-Tetramethylbenzoic acid varies by region, but it generally falls under standard chemical regulations. Manufacturers and researchers should consult local REACH compliance requirements and chemical inventory listings. The compound is not currently listed on major restricted substance inventories, making it accessible for research and industrial applications.

Future research directions for 2604-45-7 include exploring its potential in supramolecular chemistry and catalysis. The compound's ability to form stable hydrogen-bonded networks makes it interesting for designing molecular machines and sensors. Additionally, its application in asymmetric synthesis is being investigated, particularly in creating chiral auxiliaries for pharmaceutical intermediates.

For researchers working with 2,3,5,6-Tetramethylbenzoic acid, recent literature suggests promising results in co-crystal formation with various APIs (active pharmaceutical ingredients). These studies address current challenges in drug formulation, particularly improving solubility and bioavailability of poorly water-soluble drugs. The compound's predictable crystallization behavior makes it valuable for pharmaceutical crystal engineering studies.

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