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2-Methyl-5-nitrobenzenesulfonic acid

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Identification
Molecular formula
C7H7NO5S
CAS number
96-75-3
IUPAC name
2-methyl-5-nitro-benzenesulfonic acid
State
State

At room temperature, 2-Methyl-5-nitrobenzenesulfonic acid exists as a solid, specifically crystalline in form.

Melting point (Celsius)
145.00
Melting point (Kelvin)
418.15
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
231.20g/mol
Molar mass
231.2230g/mol
Density
1.4600g/cm3
Appearence

2-Methyl-5-nitrobenzenesulfonic acid typically appears as a yellow crystalline solid. This appearance is consistent with its nature as an aromatic sulfonic acid.

Comment on solubility

Solubility of 2-methyl-5-nitro-benzenesulfonic acid

2-methyl-5-nitro-benzenesulfonic acid is a versatile chemical compound known for its distinctive properties, particularly regarding its solubility. Understanding the solubility of this compound is essential for various applications. Here are some key points:

  • Polarity: The presence of both the sulfonic acid group and nitro group significantly increases the polarity of this compound. This enhanced polarity leads to better solubility in polar solvents.
  • Solvents: 2-methyl-5-nitro-benzenesulfonic acid is generally soluble in:
    • Water: Thanks to its polar functional groups, it shows good solubility.
    • Alcohols: Soluble in common alcohols like ethanol and methanol.
  • Insolubility: In contrast, this compound tends to be insoluble or exhibits very low solubility in non-polar solvents such as hexane and chloroform, which are unable to stabilize the polar interactions.

In essence, one can summarize the solubility characteristics of 2-methyl-5-nitro-benzenesulfonic acid as being highly soluble in polar environments and markedly insoluble in non-polar settings. This selective solubility is a fascinating aspect of the compound, highlighting the importance of solvent choice in its applications and reactivity.

Interesting facts

Interesting Facts about 2-Methyl-5-nitro-benzenesulfonic acid

2-Methyl-5-nitro-benzenesulfonic acid, commonly known in scientific literature for its application in various chemical processes, is a fascinating compound due to its unique structure and properties.

Key Attributes

  • Functional Groups: This compound features both a nitro group and a sulfonic acid group, which significantly enhances its reactivity and solubility in water, making it a versatile agent in organic synthesis.
  • Importance in Chemistry: It serves as a crucial intermediate in the synthesis of dyes and pigments. The functional groups allow for a variety of chemical transformations, thus expanding its utility.
  • Medicinal Chemistry: Compounds like 2-methyl-5-nitro-benzenesulfonic acid are also studied for potential pharmaceutical applications, particularly in developing antibacterial and antifungal agents.

Applications in Industry

This compound shines in the agricultural and manufacturing sectors:

  • Pesticide Production: It's used as a precursor in synthesizing herbicides and pesticides, contributing to effective crop protection.
  • Dye Manufacturing: Its ability to form stable complexes is utilized in producing synthetic dyes, essential for the textile industry.

Unique Characteristics

A few remarkable qualities make 2-methyl-5-nitro-benzenesulfonic acid stand out:

  • Electrophilicity: The electron-withdrawing nitro group increases the electrophilic character of the aromatic ring, making it more reactive towards nucleophiles.
  • Solubility Properties: The sulfonic acid group enhances water solubility, enabling its application in aqueous solutions and reactions.

Overall, 2-methyl-5-nitro-benzenesulfonic acid is a vital compound in organic chemistry, with a range of applications that highlight its importance in both academic and industrial contexts. Its synthesis and use remind us that the intricate dance of atoms and functional groups results in compounds with endless possibilities.

Synonyms
2-METHYL-5-NITROBENZENESULFONIC ACID
121-03-9
4-Nitrotoluene-2-sulfonic acid
p-Nitrotoluene-o-sulfonic acid
5-Nitro-o-toluenesulfonic acid
Pntos
4-Nitro-2-toluenesulfonic acid
4-Nitrotoluene-2-sulphonic acid
Benzenesulfonic acid, 2-methyl-5-nitro-
5-Nitro-2-methylbenzenesulfonic acid
o-Toluenesulfonic acid, 5-nitro-
Kyselina 4-nitrotoluen-2-sulfonova
NSC 9580
JBO1Z0PMOH
UNII-JBO1Z0PMOH
4-Nitrotoluene-2-sulfonic Acid Hydrate
HSDB 5470
2-Toluenesulfonic acid, 5-nitro
EINECS 204-445-3
p-nitrotoluol-o-sulfonic acid
BRN 2216176
p-nitrotoluene-o-sulphonic acid
5-nitro-o-toluenesulphonic acid
4-mitro-2-toluenesulphonic acid
DTXSID4026975
CHEBI:67120
NSC-9580
2-methyl-5-nitrobenzenesulphonic acid
5-nitro-2-methylbenzenesulphonic acid
DTXCID506975
EC 204-445-3
3-11-00-00173 (Beilstein Handbook Reference)
2-TOLUENESULFONIC ACID, 5-NITRO-
5-Nitro-o-toluenesulfonic acid; NSC 9580; PNTOS
CAS-121-03-9
Kyselina 4-nitrotoluen-2-sulfonova [Czech]
p-Nitrotoluolsulfosaure
2-methyl-5-nitrobenzene-1-sulfonic acid
WLN: WSQR B1 ENW
p-Nitrotoluene-o-sulfonicacid
SCHEMBL709336
p-nitrotoluene-2-sulphonic acid
CHEMBL3183957
ZDTXQHVBLWYPHS-UHFFFAOYSA-
NSC9580
CS-M3300
Tox21_202190
Tox21_303151
AKOS003241755
NCGC00249182-01
NCGC00257106-01
NCGC00259739-01
BS-22427
4-nitrotoluene-2-sulfonic acid, AldrichCPR
DB-041599
N0277
NS00003565
2-METHYL-5-NITROBENZENESULFONIC ACID [HSDB]
Q27135631
4-Nitrotoluene-2-sulfonic acid 10 microg/mL in Acetonitrile
204-445-3
InChI=1/C7H7NO5S/c1-5-2-3-6(8(9)10)4-7(5)14(11,12)13/h2-4H,1H3,(H,11,12,13)