p-Toluenesulfonic acid monohydrate, ACS, 98.5+%

Catalog No.	Quantity
AA4400222	100 g
AA4400236	500 g

Catalog No. AA4400222 Supplier Thermo Scientific Chemicals Supplier No. 04400222

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.

Specifications

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

• 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

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

SDS

RUO – Research Use Only