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p-Toluenesulfonic acid monohydrate, ACS, 98.5+%

Catalog No. AA4400222
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AA4400236 500 g
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Catalog No. AA4400222 Supplier Thermo Scientific Chemicals Supplier No. 04400222
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Description

CAS: 6192-52-5 | C7H10O4S | 190.213 g/mol

p-Toluenesulfonic acid monohydrate is used as a catalyst in the synthesis of resveratrol, in oxane derivatives as an antimalarial agent, as substituted piperidine and unsymmetrical benzyl. It acts as a catalyst in the preparation of 1,3,5-trisubstituted pyrazoles derivatives, selenated ketene dithioacetals, triazoloquinazolinone and benzimidazoquinazolinone derivatives. It also serves as an intermediate in the esterification and in reductive amination reactions.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Chemical Identifiers

CAS 6192-52-5
Molecular Formula C7H10O4S
Molecular Weight (g/mol) 190.213
MDL Number MFCD00142137
InChI Key KJIFKLIQANRMOU-UHFFFAOYSA-N
Synonym p-toluenesulfonic acid monohydrate, 4-methylbenzenesulfonic acid hydrate, 4-methylbenzenesulfonic acid monohydrate, p-toluene sulfonic acid monohydrate, unii-3bto78gaff, benzenesulfonic acid, 4-methyl-, monohydrate, ptoluenesulfonic acid, p-toluenesulfonic acid, monohydrate, 3bto78gaff, 4-methylbenzene-1-sulfonic acid hydrate
PubChem CID 521998
IUPAC Name 4-methylbenzenesulfonic acid;hydrate
SMILES CC1=CC=C(C=C1)S(=O)(=O)O.O

Specifications

Melting Point 103°C to 106°C (anhydrous)
Boiling Point 140°C (20mmHg)
Color Pink to White
UN Number UN2585
Beilstein 3568023
Merck Index 14,9533
Formula Weight 190.22 (172.20 Anhydrous)
Percent Purity ≥98.5%
Grade ACS
Density 1.24 g/mL
Quantity 100 g
Flash Point 150°C (302°F)
Odor Mild
Physical Form Crystalline
Sensitivity Hygroscopic
Chemical Name or Material p-Toluenesulfonic acid monohydrate
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Safety and Handling

Hazard Category H314-H335-H373
Hazard Statement GHS H Statement
H314-H335-H319
Causes severe skin burns and eye damage.
May cause respiratory irritation.
Causes serious eye irritation.
Precautionary Statement P260-P264b-P271-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P310-P363-P501c
DOTInformation Transport Hazard Class: 8; Packing Group: III; Proper Shipping Name: ARYL SULFONIC ACIDS, SOLID
EINECSNumber 203-180-0
RTECSNumber DB7164000
TSCA Yes
Recommended Storage Ambient temperatures; Store under Argon

RUO – Research Use Only