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Sigma-Aldrich

p-Toluenesulfonic acid monohydrate

SAJ first grade, ≥99.0%

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About This Item

Linear Formula:
CH3C6H4SO3H · H2O
CAS Number:
6192-52-5
Molecular Weight:
190.22
Beilstein:
3568023
EC Number:
203-180-0
MDL number:
MFCD00142137
UNSPSC Code:
12352002
PubChem Substance ID:
329753474

grade

SAJ first grade

vapor density

5.9 (vs air)

Assay

≥99.0%

form

solid

availability

available only in Japan

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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Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

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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G Shanmugam et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 95, 177-183 (2012-05-29)
Bulk crystals of newly identified organic nonlinear optical material 4-methylanilinium p-toluenesulfonate (PMPT) were grown by slow evaporation solution growth method using ethanol as a solvent. It crystallizes in monoclinic system with a noncentrosymmetric space group P2(1). The formation of the
Hans H Adomat et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 902, 84-95 (2012-07-24)
Androgens are key mediators of prostate development and function, a role that extends to the development of prostate diseases such as benign prostatic hyperplasia (BPH) and prostate cancer. In prostate, DHT is the major androgen and reduction and glucuronidation are
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)
Pei Liu et al.
Organic & biomolecular chemistry, 10(24), 4696-4698 (2012-05-18)
A convenient one-pot Mannich-type-cyclization-oxidation tandem process has been developed for the synthesis of 1,3,5-trisubstituted pyrazoles derivatives from aldehydes, hydrazines and alkynes using p-toluenesulfonic acid monohydrate (PTSA) as a multifunctional catalyst. This method provides a flexible and rapid route to 1,3,5-trisubstituted
Aditya Kulkarni et al.
Organic letters, 13(19), 5124-5127 (2011-09-10)
An environmentally benign procedure for the hydrogenation of unprotected indoles is described. The hydrogenation reaction is catalyzed by Pt/C and activated by p-toluenesulfonic acid in water as a solvent. The efficacy of the method is illustrated by the hydrogenation of
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