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Sigma-Aldrich

p-Toluenesulfonic acid monohydrate

≥99% (calc. to H2O free subst.)

Sinônimo(s):

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

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About This Item

Fórmula linear:
CH3C6H5SO3H · H2O
Número CAS:
6192-52-5
Peso molecular:
190.22
Número do índice de cores:
42655
Beilstein:
3568023
Número CE:
203-180-0
Número MDL:
MFCD00142137
Código UNSPSC:
12352106
ID de substância PubChem:
57648235
NACRES:
NA.22

Nível de qualidade

200

Ensaio

≥99% (calc. to H2O free subst.)

forma

solid

Impurezas

≥85% toluene-4-solfonic acid
8-12% water (Karl Fischer)

resíduo de ignição

≤0.5%

cadeia de caracteres SMILES

O.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

chave InChI

KJIFKLIQANRMOU-UHFFFAOYSA-N

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Descrição geral

p-Toluenesulfonic acid monohydrate, an oxonium salt, is an inexpensive and easy-to-handle organic catalyst used in organic synthesis.

Aplicação

p-Toluenesulfonic acid monohydrate is a catalyst in esterification, reductive amination, Biginelli reaction, and intermolecular coupling of the aromatic nucleus. It is also used in the preparation of various bioactive compounds via multicomponent condensation reactions.

Pictogramas

CorrosionExclamation mark
GHS05,GHS07

Palavra indicadora

Danger

Frases de perigo

H314,H335

Classificações de perigo

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

Órgãos-alvo

Respiratory system

Código de classe de armazenamento

8A - Combustible corrosive hazardous materials

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

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Certificados de análise (COA)

Lot/Batch Number
STBK3427
STBK3426
BCCF5776
STBJ8961
STBJ6078

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P P Akalin et al.
Polish journal of veterinary sciences, 22(2), 271-278 (2019-07-04)
This study aimed to determine the levels of milk cell total protein (TP), reduced nicotinamide adenine dinucleotide phosphate (NADPH), total glutathione (tGSH), activities of glucose-6-phosphate dehydrogenase (G6PD) and glutathione peroxidase (GPx) in subclinical mastitic cows. Milk from each udder was
Juan Mauricio Garré et al.
Nature communications, 11(1), 1784-1784 (2020-04-15)
Dysregulated immunity has been implicated in the pathogenesis of neurodevelopmental disorders but its contribution to synaptic and behavioral deficits in Rett syndrome (RTT) remains unknown. P2X7 receptors (P2X7Rs) are unique purinergic receptors with pro-inflammatory functions. Here, we report in a
Ashleigh Willis et al.
Journal of neuroscience methods, 308, 1-5 (2018-07-24)
Primary neuronal cultures underpin diverse neuroscience experiments, including various protein analysis techniques, such as Western blotting, whereby protein extraction from cultured neurons is required. During immunoblotting experiments, we encountered problems due to a highly-abundant protein of 65-70 KDa present in
Ayman M Atta et al.
Molecules (Basel, Switzerland), 20(6), 11131-11153 (2015-06-20)
This work examines the use of new hydrophobic ionic liquid derivatives, namely octadecylammonium tosylate (ODA-TS) and oleylammonium tosylate (OA-TS) for corrosion protection of steel in 1 M hydrochloric acid solution. Their chemical structures were determined from NMR analyses. The surface
Yi-Ling Hsieh et al.
Pharmaceutical research, 32(9), 3110-3118 (2015-04-16)
The aim of this study was to investigate how the disproportionation process can be impacted by the properties of the salt, specifically pHmax. Five miconazole salts and four sertraline salts were selected for this study. The extent of conversion was
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