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p-Toluenesulfonic acid monohydrate

ALDRICH/27815 - ≥99% (calc. to H2O free subst.)

Synonym: 4-Methylbenzenesulfonic acid monohydrate; 4-Toluenesulfonic acid monohydrate; PTSA monohydrate; TsOH monohydrate

CAS Number: 6192-52-5
Empirical Formula (Hill Notation): C7H8O3S · H2O
Molecular Weight: 190.22
EC Number: 203-180-0
MDL Number: MFCD00142137
Linear Formula: CH3C6H5SO3H · H2O
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-27815-1KG-R 1 kg
 $62.50
1/EA		 Add To Favorites
45-27815-2.5KG-R 2.5 kg
 $111.00
1/EA		 Add To Favorites
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: 27815-1KG-R
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: 27815-2.5KG-R

 

assay ≥99% (calc. to H2O free subst.)
form solid
ign. residue ≤0.5%
impurities ≥85% toluene-4-solfonic acid
  8-12% water (Karl Fischer)
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
Quality Level 200 
SMILES string O.Cc1ccc(cc1)S(O)(=O)=O
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.
General description: p-Toluenesulfonic acid monohydrate, an oxonium salt, is an inexpensive and easy-to-handle organic catalyst used in organic synthesis.
Purity ≥99% (calc. to H2O free subst.)
Colour Index Number 42655
UNSPSC 12352106

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