T35920

Sigma-Aldrich

p-Toluenesulfonic acid monohydrate

ReagentPlus®, ≥98%

Linear Formula:
CH3C6H4SO3H · H2O
CAS Number:
Molecular Weight:
190.22
Beilstein/REAXYS Number:
3568023
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

vapor density

5.9 (vs air)

product line

ReagentPlus®

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application

p-toluenesulfonic acid monohydrate may be used as a better alternative to Friedel-Crafts catalysts for the alkylation of the aromatic nucleus with activated alkyl halides, alkenes, or tosylates under mild conditions.

Packaging

3, 15 kg in poly drum
5 g in glass bottle
100, 500 g in poly bottle

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

pictograms

Corrosion

signalword

Danger

hazcat

Aquatic Chronic 3 - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B

storage_class_code

8A - Combustible, corrosive hazardous materials

WGK Germany

WGK 1

Flash Point F

Not applicable

Flash Point C

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

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)
Jhonny Azuaje et al.
ACS combinatorial science, 13(1), 89-95 (2011-01-21)
We document here the use of polymer-supported p-toluenesulfonic acid as a highly effective, robust, economical and eco-friendly isocyanide scavenger. The herein described strategy circumvent the intense and repulsive odor of volatile isocyanides, enabling simplified and odorless workup and purifications. The...
Zhiqiang Ji et al.
Inorganic chemistry, 49(4), 1337-1346 (2010-01-23)
Two back-to-back terpyridine ligands using fluorenyl as bridging group (1-L and 2-L) and their corresponding dinuclear platinum(II) complexes (1 and 2) were synthesized and characterized. Their electronic absorption, photoluminescence, and the triplet transient difference absorption were systematically investigated. Both ligands...
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...
Daniel C Yee et al.
The FEBS journal, 280(22), 5780-5800 (2013-08-29)
Visual rhodopsins are recognized members of the large and diverse family of G protein-coupled receptors (GPCRs), but their evolutionary origin and relationships to other proteins are not known. In a previous paper [Shlykov MA, Zheng WH, Chen JS & Saier...
Protocols

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service