p-Toluenesulfonic acid monohydrate ACS reagent, 100g

p-Toluenesulfonic acid monohydrate ACS reagent, 98.5%, 100g

PROPERTIES
Quality Level
200

grade
ACS reagent

vapor density
5.9 (vs air)

assay
≥98.5%

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, is an inexpensive and easy to handle organic catalyst used in organic synthesis. The study of its crystalline structure shows that it is monoclinic with P21/c space group. Its solubility in aqueous sulfuric acid solutions has been studied.
Application
p-Toluenesulfonic acid monohydrate (p-TsOH·H2O) may be used as a catalyst in the synthesis of the following:
Unsymmetrical benzils.
Highly substituted piperidines.
1,3,5-Trisubstituted benzenes by trimerization of alkynes.
Triazoloquinazolinone and benzimidazoquinazolinone derivatives.
1,3,5-Trisubstituted pyrazoles derivatives.
Selenated ketene dithioacetals.
Packaging
5 g in glass bottle
100, 500 g in poly bottle
SAFETY INFORMATION
Signal Word
Danger

Hazard Statements
H290 - H314 - H412
Precautionary Statements
P234 - P260 - P273 - P280 - P303 + P361 + P353 - P305 + P351 + P338
Hazard Classifications
Aquatic Chronic 3 - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B

Storage Class Code
8A - Combustible, corrosive hazardous materials

WGK
WGK 1

Personal Protective Equipment
dust mask type N95 (US),Eyeshields,Gloves