Sigma-Aldrich P-Toluenesulfonic Acid Monohydrate Acs&

Name: Sigma-Aldrich P-Toluenesulfonic Acid Monohydrate Acs&
SKU: SIAL-402885-2.5KG
Price: 479.75 USD

List Price $479.75 Your Price $479.75

Sigma-Aldrich P-Toluenesulfonic Acid Monohydrate Acs& - SIAL (Additional S&H or Hazmat Fees May Apply)

NETA PART: SIAL-402885-2.5KG

MFG.PART: 402885-2.5KG

UNSPSC: 12352301

Manufacturer: Sigma-Aldrich

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Description

Product Name

p-Toluenesulfonic acid monohydrate, ACS reagent, ≥98.5%

grade

ACS reagent

Quality Level

300

vapor density

5.9 (vs air)

assay

≥98.5%

form

solid

concentration

≥98.5%

clarity of soln

passes test

impurities

9.5-11.5% water

ign. residue

≤0.1%

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Related Categories

Acids

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]

pictograms

GHS07

signalword

Warning

hcodes

H315,H319,H335

pcodes

P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - 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