T4553
p-Toluenesulfonic acid monohydrate
ACS reagent, ≥98.5%
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About This Item
Linear Formula:
CH3C6H4SO3H · H2O
CAS Number:
Molecular Weight:
190.22
EC Number:
203-180-0
UNSPSC Code:
12352103
MDL number:
Beilstein/REAXYS Number:
3568023
grade
ACS reagent
vapor density
5.9 (vs air)
assay
≥98.5%
impurities
9.5-11.5% water
ign. residue
≤0.1%
mp
103-106 °C (lit.)
solubility
clarity passes test
anion traces
sulfate (SO42-): ≤0.3%
cation traces
Fe: ≤0.01%, Na: ≤0.002%, heavy metals (as Pb): ≤0.001%
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
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Ljupčo Pejov et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 79(1), 27-34 (2011-03-23)
The 1:1 p-toluenesulfonic acid-water complex, p-toluenesulfonic acid itself and the p-toluenesulfonate anion were studied at HF and B3LYP/6-31+G(d,p) levels of theory. Full geometry optimizations of the aforementioned species reveal non-existence of ionic minima on the explored 1:1 p-toluenesulfonic acid-water complex
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
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