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T35920

p-Toluenesulfonic acid monohydrate

≥98%, solid, ReagentPlus®

Synonym(s):

4-Methylbenzenesulfonic acid monohydrate, 4-Toluenesulfonic acid monohydrate, PTSA monohydrate, TsOH monohydrate

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About This Item

Linear Formula:
CH3C6H4SO3H · H2O
CAS Number:
6192-52-5
Molecular Weight:
190.22
UNSPSC Code:
12352100
PubChem Substance ID:
57654665
NACRES:
NA.21
EC Number:
203-180-0
MDL number:
MFCD00142137
Beilstein/REAXYS Number:
3568023
Assay:
≥98%
Form:
solid
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Product Name

p-Toluenesulfonic acid monohydrate, ReagentPlus®, ≥98%

vapor density

5.9 (vs air)

Quality Level

200

product line

ReagentPlus®

assay

≥98%

form

solid

mp

103-106 °C ((lit.)), 103-106 °C (lit.)

functional group

tosylate

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], 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], KJIFKLIQANRMOU-UHFFFAOYSA-N

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.

Legal Information

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

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pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1C - STOT SE 3

target_organs

Respiratory system

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
MKAA1357
21123LU
17601EA
14428TD
14318KS

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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
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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Global Trade Item Number

SKUGTIN
T35920-100G04061835253852
T35920-15KG04061837344718
T35920-3KG04061837344725
T35920-500G04061835253869
T35920-5G04061837344732