27815
p-Toluenesulfonic acid monohydrate
≥99% (calc. to H2O free subst.)
Synonym(s):
4-Methylbenzenesulfonic acid monohydrate, 4-Toluenesulfonic acid monohydrate, PTSA monohydrate, TsOH monohydrate
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About This Item
Linear Formula:
CH3C6H5SO3H · H2O
CAS Number:
Molecular Weight:
190.22
EC Number:
203-180-0
UNSPSC Code:
12352106
NACRES:
NA.22
PubChem Substance ID:
MDL number:
Colour Index Number:
42655
Beilstein/REAXYS Number:
3568023
Assay:
≥99% (calc. to H2O free subst.)
Form:
solid
Quality Level
assay
≥99% (calc. to H2O free subst.)
form
solid
impurities
≥85% toluene-4-solfonic acid, 8-12% water (Karl Fischer)
ign. residue
≤0.5%
SMILES string
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
InChI key
KJIFKLIQANRMOU-UHFFFAOYSA-N
General description
p-Toluenesulfonic acid monohydrate, an oxonium salt, is an inexpensive and easy-to-handle organic catalyst used in organic synthesis.
Application
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.
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flash_point_f
Not applicable
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Skin Corr. 1C - STOT SE 3
target_organs
Respiratory system
Storage Class
8A - Combustible corrosive hazardous materials
wgk
WGK 1
flash_point_c
Not applicable
Regulatory Information
危险化学品
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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
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 27815-100G-F | 04061835541188 |
| 27815-1KG-R | 04061826723548 |
| 27815-2.5KG-R | 04061833545874 |
| 27815-25G-F | 04061835541195 |
| 27815-25KG-R | 04061833545881 |
| 27815S-25KG-R | 04061832860138 |