Sigma-Aldrich 402885 p-Toluenesulfonic acid monohydrate ACS reagent, ≥98.5% 5 gr
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LB.SA.402885-5G
Kısa Bilgi
Synonym(s): 4-Methylbenzenesulfonic acid monohydrate, 4-Toluenesulfonic acid monohydrate, PTSA monohydrate, TsOH monohydrate Linear Formula: CH3C6H4SO3H · H2O CAS Number: 6192-52-5 Molecular Weight: 190.22 Beilstein: 3568023 EC Number: 203-180-0 MDL number: MFCD00142137 UNSPSC Code: 12352100 PubChem Substance ID: 24865132 NACRES: NA.21
Bilgi
CAS Number: 6192-52-5
| Sigma-Aldrich 402885 p-Toluenesulfonic acid monohydrate ACS reagent, ≥98.5% 5 gr |
| Synonym(s): 4-Methylbenzenesulfonic acid monohydrate, 4-Toluenesulfonic acid monohydrate, PTSA monohydrate, TsOH monohydrate Linear Formula: CH3C6H4SO3H · H2O CAS Number: 6192-52-5 Molecular Weight: 190.22 Beilstein: 3568023 EC Number: 203-180-0 MDL number: MFCD00142137 UNSPSC Code: 12352100 PubChem Substance ID: 24865132 NACRES: NA.21 |
| PROPERTIES grade ACS reagent Quality Level 200 vapor density 5.9 (vs air) Assay ≥98.5% form solid clarity of soln passes test impurities 9.5-11.5% water ign. residue ≤0.1% mp 103-106 °C (lit.) solubility H2O: 10g + 50 mL, clear, colorless 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 DESCRIPTION General description p-Toluenesulfonic acid monohydrate, an oxonium salt[1], is an inexpensive and easy to handle organic catalyst used in organic synthesis.[2] The study of its crystalline structure shows that it is monoclinic with P21/c space group.[1] Its solubility in aqueous sulfuric acid solutions has been studied.[3] Application p-Toluenesulfonic acid monohydrate (p-TsOH·H2O) may be used as a catalyst in the synthesis of the following: Unsymmetrical benzils.[4] Highly substituted piperidines.[2] 1,3,5-Trisubstituted benzenes by trimerization of alkynes.[5] Triazoloquinazolinone and benzimidazoquinazolinone derivatives.[6] 1,3,5-Trisubstituted pyrazoles derivatives.[7] Selenated ketene dithioacetals.[8] |
