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Sigma-Aldrich

p-Toluenesulfonic acid monohydrate

reagent grade, 98%

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About This Item

Linear Formula:
CH3C6H4SO3H · H2O
CAS Number:
Molecular Weight:
190.22
Beilstein:
3568023
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:

grade

reagent grade

vapor density

5.9 (vs air)

Assay

98%

mp

103-106 °C (lit.)

SMILES string

[H]O[H].Cc1ccc(cc1)S(O)(=O)=O

InChI

1S/C7H8O3S.H2O/c1-6-2-4-7(5-3-6)11(8,9)10;/h2-5H,1H3,(H,8,9,10);1H2

InChI key

KJIFKLIQANRMOU-UHFFFAOYSA-N

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Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

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Pictograms

CorrosionExclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Met. Corr. 1 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Makoto Ueno et al.
The Journal of organic chemistry, 68(16), 6424-6426 (2003-08-05)
alpha-Tosyloxyketones and alpha-tosyloxyaldehydes were directly prepared from alcohols by treatment with iodosylbenzene and p-toluenesulfonic acid monohydrate in good yields. This method can be used for the direct preparation of thiazoles, imidazoles, and imidazo[1,2-a]pyridines from alcohols in good to moderate yields
The crystal and molecular structure of 4-methyl sulfonic acid (p-toluenesulfonic acid) monohydrate, C7H8SO3-. H3O+, an oxonium salt.
Arora SK and Sundaralingam M.
Acta Crystallographica Section B, Structural Science, 27(7), 1293-1298 (1971)
Detailed characterization of p-toluenesulfonic acid monohydrate as a convenient, recoverable, safe, and selective catalyst for alkylation of the aromatic nucleus.
Mahindaratne MPD and Wimalasena K.
The Journal of Organic Chemistry, 63(9), 2858-2866 (1998)
Solvent-Free Reductive Amination: An Organic Chemistry Experiment.
Goldstein SW and Cross AV.
Journal of Chemical Education (2015)
Mild C-H halogenation of anilides and the isolation of an unusual palladium(I)-palladium(II) species.
Robin B Bedford et al.
Angewandte Chemie (International ed. in English), 50(24), 5524-5527 (2011-05-14)

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