27815

p-Toluenesulfonic acid monohydrate

≥99% (calc. to H₂O free subst.)

• Sinónimos: 4-Methylbenzenesulfonic acid monohydrate, 4-Toluenesulfonic acid monohydrate, PTSA monohydrate, TsOH monohydrate
• Fórmula lineal: CH₃C₆H₅SO₃H · H₂O
• Número de CAS: 6192-52-5
• Peso molecular: 190.22
• Colour Index Number: 42655
• Beilstein/REAXYS Number: 3568023
• EC Number: 203-180-0
• MDL number: MFCD00142137
• UNSPSC Code: 12352106
• PubChem Substance ID: 57648235
• NACRES: NA.22

Propiedades

• Quality Level: 200
• 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

Descripción

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.

Información de seguridad

• Pictograms: GHS05,GHS07
• signalword: Danger
• hcodes: H314,H335
• pcodes: P260 - P271 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1 - Skin Corr. 1C - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 8A - Combustible corrosive hazardous materials
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable