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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
BCCP3149
BCCP3148
BCCP1761
BCCP1762
BCCP1758

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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)
Chika Taniguchi et al.
International journal of pharmaceutics, 434(1-2), 148-154 (2012-05-31)
This study was undertaken to develop new dipyridamole (DP) formulations with acidic microenvironmental pH-modifiers for improving dissolution and absorption under hypochlorhydric conditions. Dipyridamole granules (DPG) with ten acidic pH-modifiers were prepared with conventional wet granulation, and their manufacturability, stability and
Abdullah S Al-Bogami et al.
Ultrasonics sonochemistry, 20(5), 1194-1202 (2013-04-18)
The present paper deal with the multi-component condensation of 8-hydroxy quinoline, aromatic aldehydes, and sulfone derivatives catalyzed by p-toluenesulfonic acid for the synthesis of a series of 4H-pyrano[3,2-h]quinoline derivatives in ethanol under ultrasonic irradiations. We provide a series of quinoline
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