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3,4-Dimethylbenzoic acid

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Identification
Molecular formula
C9H10O2
CAS number
619-04-5
IUPAC name
3,4-dimethylbenzoic acid
State
State

This compound is a solid at room temperature, usually found as a crystalline powder. It has limited solubility in water but can dissolve in organic solvents like ethanol and acetone.

Melting point (Celsius)
169.00
Melting point (Kelvin)
442.15
Boiling point (Celsius)
285.00
Boiling point (Kelvin)
558.15
General information
Molecular weight
150.18g/mol
Molar mass
150.1770g/mol
Density
1.0360g/cm3
Appearence

3,4-Dimethylbenzoic acid appears as a white to off-white crystalline solid. It is typically fine in texture and can clump together when packed. The crystalline nature can vary slightly depending on purity and preparation methods but remains largely consistent.

Comment on solubility

Solubility of 3,4-dimethylbenzoic acid

3,4-dimethylbenzoic acid, a substituted aromatic carboxylic acid, exhibits specific solubility characteristics that are influenced by its molecular structure. This compound is generally moderately soluble in polar solvents such as water, particularly when compared to its non-polar counterparts. Some key points regarding its solubility include:

  • Solubility in Water: The presence of the carboxylic acid group contributes to its ability to interact with water molecules, enhancing solubility through hydrogen bonding.
  • Effect of Substituents: The two methyl groups in the ortho positions may create steric hindrance, potentially decreasing solubility in highly polar solvents.
  • Solvents: It is also soluble in various organic solvents such as ethanol and acetone, providing versatility for laboratory applications.
  • Temperature Influence: The solubility can increase with temperature, which is common for many organic compounds.

In general, the solubility behavior of 3,4-dimethylbenzoic acid highlights the important interplay between molecular structure and solvent interactions, making it a fascinating subject for studies in chemical properties and applications.

Interesting facts

Interesting Facts about 3,4-Dimethylbenzoic Acid

3,4-Dimethylbenzoic acid, also known as m-toluic acid, is a fascinating compound belonging to the family of benzoic acids. Its unique structure and properties make it a subject of interest in various fields of chemistry and industry.

Chemical Structure and Properties

This compound can be recognized by its benzene ring substituted with two methyl groups at the 3 and 4 positions, along with a carboxylic acid functional group. This specific arrangement leads to intriguing electronic effects that influence its reactivity:

  • Substituent Effects: The methyl groups are electron-donating, which can affect the acidity and reactivity of the carboxylic acid functional group.
  • Isomerism: Different positional isomers of toluic acid exhibit varied properties, showcasing the importance of molecular geometry in chemistry.

Applications

3,4-Dimethylbenzoic acid has practical applications that span several industries:

  • Industrial Uses: It is used as an intermediate in the synthesis of dyes, fragrances, and other industrial chemicals.
  • Research Applications: In analytical chemistry, it serves as a reagent in various synthesis processes and studies.

Biological Significance

Like many benzoic acids, 3,4-dimethylbenzoic acid is studied for its potential biological activities. Its derivatives are often examined for:

  • Antimicrobial Properties: Some derivatives have shown promise in inhibiting microbial growth.
  • Anti-inflammatory Activities: Various studies investigate the potential pharmacological benefits of such compounds.

As a student or scientist, embracing the complexity and versatility of compounds like 3,4-dimethylbenzoic acid can lead to remarkable discoveries in both academic and practical realms. It serves as a reminder of the intricate relationships between structure and function in chemistry, revealing how slight variations can create vast differences in properties and applications.

Synonyms
3,4-DIMETHYLBENZOIC ACID
619-04-5
Benzoic acid, 3,4-dimethyl-
1-Carboxy-3,4-dimethylbenzene
BRN 0907267
EINECS 210-576-7
Z2TCZ088AV
UNII-Z2TCZ088AV
DTXSID5060693
CHEBI:64818
OPVAJFQBSDUNQA-UHFFFAOYSA-
4-09-00-01803 (Beilstein Handbook Reference)
DTXCID2043165
210-576-7
inchi=1/c9h10o2/c1-6-3-4-8(9(10)11)5-7(6)2/h3-5h,1-2h3,(h,10,11)
opvajfqbsdunqa-uhfffaoysa-n
3,4-DiMethyl-Benzoic Acid
o-Xylene-4-carboxylic Acid
MFCD00002524
3,4-Dimethylbenzoicacid
3,4-dimethyl benzoic acid
3, 4 dimethyl benzoic acid
SCHEMBL310259
3,4-Dimethylbenzoic acid, 98%
STL169575
AKOS000120463
AC-8956
CS-W018150
DS-1853
FD54829
FS-2351
HY-W017434
NCGC00338539-01
PD158345
SY001153
D1439
NS00015549
EN300-20154
AB01331517-02
AE-562/40207816
Q27133457
F3098-0374
Z104477078