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218766

Sigma-Aldrich

4-Aminotoluene-3-sulfonic acid

99%

Synonym(s):

2-Amino-5-methylbenzenesulfonic acid, 4-Methylaniline-2-sulfonic acid

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About This Item

Linear Formula:
H2NC6H3(CH3)SO3H
CAS Number:
88-44-8
Molecular Weight:
187.22
Beilstein/REAXYS Number:
2211509
EC Number:
201-831-3
MDL number:
MFCD00007908
UNSPSC Code:
12352100
PubChem Substance ID:
24853086
NACRES:
NA.22

assay

99%

form

solid

solubility

water: soluble 6 g/L at 20 °C

SMILES string

Cc1ccc(N)c(c1)S(O)(=O)=O

InChI

1S/C7H9NO3S/c1-5-2-3-6(8)7(4-5)12(9,10)11/h2-4H,8H2,1H3,(H,9,10,11)

InChI key

LTPSRQRIPCVMKQ-UHFFFAOYSA-N

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General description

4-Aminotoluene-3-sulfonic acid acts as Schiff base ligand and forms binary and ternary complexes with Co(II), Ni(II), Cu(II) and Zn(II) ions.

Application

4-Aminotoluene-3-sulfonic acid was used to investigate the enrichment of aminobenzoic acids and aminotoluenesulfonic acids using graphitized carbon black (GCB) by solid-phase extraction. It was also used in the synthesis of azobenzene derivatives.

Legal Information

DuPont product

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Le Tkhi Khien et al.
Bioorganicheskaia khimiia, 35(5), 610-617 (2009-11-17)
Derivatives of azobenzene which contained a maleimide group in one of the benzene rings (for binding to a protein cysteine residue) and maleimide, hydroxyl, or carboxyl substitutes in another benzene ring were synthesized. The reactivity of these compounds towards a
Solid-phase extraction of aminobenzoic acids and aminotoluenesulfonic acids with graphitized carbon black.
Bohme C, et al.
Fresenius Journal of Analytical Chemistry, 360(7-8), 805-807 (1998)
Marianita Perez-Gonzalez et al.
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 36(2), 212-224 (2019-01-31)
Pigment Red 57 (Colour Index No. 15850, PR57) and Pigment Red 57:1 (Colour Index No. 15850:1, PR57:1) are certifiable in the USA as the color additives D&C Red No. 6 (R6) and D&C Red No. 7 (R7) for use in
Abeer A Faheim et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 105, 109-124 (2013-01-09)
Salicylidene (4-aminotoluene-3-sulfonic acid) Schiff base ligand H(2)L, and its binary and ternary Co(II), Ni(II), Cu(II) and Zn(II) complexes using 8-hydroxyquinoline (8-HOqu) and 2-aminopyridine (2-Ampy) as secondary ligands have been synthesised and characterized via elemental analysis, spectral data (IR, (1)H NMR

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