p-Toluenesulfonic acid monohydrate, ACS, 98.5+%, Thermo Scientific Chemicals

Product Code	Brand	Quantity
11305078	Thermo Scientific Alfa Aesar 044002.22	100 g
11395068	Thermo Scientific Alfa Aesar 044002.36	500 g

Description

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 Weight (g/mol): 190.213
• InChI Key: KJIFKLIQANRMOU-UHFFFAOYSA-N
• PubChem CID: 521998
• SMILES: CC1=CC=C(C=C1)S(=O)(=O)O.O

• Molecular Formula: C7H10O4S
• MDL Number: MFCD00142137
• 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
• IUPAC Name: 4-methylbenzenesulfonic acid;hydrate

Specifications

• CAS: 6192-52-5
• Boiling Point: 140°C (20mmHg)
• Molecular Formula: C7H10O4S
• UN Number: UN2585
• Merck Index: 14,9533
• InChI Key: KJIFKLIQANRMOU-UHFFFAOYSA-N
• IUPAC Name: 4-methylbenzenesulfonic acid;hydrate
• PubChem CID: 521998
• Percent Purity: ≥98.5%
• Density: 1.24 g/mL
• Odor: Mild
• Sensitivity: Hygroscopic

• Melting Point: 103°C to 106°C (anhydrous)
• Color: Pink to White
• MDL Number: MFCD00142137
• Beilstein: 3568023
• 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
• SMILES: CC1=CC=C(C=C1)S(=O)(=O)O.O
• Molecular Weight (g/mol): 190.213
• Formula Weight: 190.22 (172.20 Anhydrous)
• Grade: ACS
• Flash Point: 150°C (302°F)
• Physical Form: Crystalline
• Chemical Name or Material: p-Toluenesulfonic acid monohydrate

Safety and Handling

GHS H Statement
H314-H335-H319
Causes severe skin burns and eye damage.
May cause respiratory irritation.
Causes serious eye irritation.

P260-P264b-P271-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P310-P363-P501c

H314-H335-H373

missing translation for 'dotInformation' : Transport Hazard Class: 8; Packing Group: III; Proper Shipping Name: ARYL SULFONIC ACIDS, SOLID

missing translation for 'einecsNumber' : 203-180-0

missing translation for 'rtecsNumber' : DB7164000

missing translation for 'tsca' : Yes

Recommended Storage : Ambient temperatures; Store under Argon

RUO – Research Use Only