T35920

p-Toluenesulfonic acid monohydrate

ReagentPlus^®, ≥98%

• 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: 57654665
• NACRES: NA.21

Properties

• vapor density: 5.9 (vs air); 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

Description

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

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H290,H314,H335
• Precautionary Statements: P234 - P260 - P271 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1C - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 8A - Combustible corrosive hazardous materials
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves