Benzenesulfonic acids and derivatives
Medchemexpress LLC P-toluenesulfonic acid-d7 monohydrate | 1219795-22-8 | 99.8% | 197.26 g·mol⁻¹ | C7H3D7O4S | 100 MG
p-Toluenesulfonic acid-d7 monohydrate is a deuterium-labeled analogue of p-toluenesulfonic acid supplied as a monohydrate for research use. It provides an isotopically labeled, high-purity acid useful as an internal standard, tracer, or reagent in analytical and synthetic applications, enabling accurate quantitation and reduced background in spectroscopic and mass-spectrometric methods.
- High isotopic enrichment and purity (≈99.8%) for analytical confidence.
- Suitable as an internal standard for NMR, GC-MS, and LC-MS quantitation.
- Solid monohydrate form with good solubility in common solvents.
- Stable when stored under recommended conditions (-20°C, protect from light).
- Enables tracer studies and improved accuracy in quantitative assays.
Medchemexpress LLC p-Toluenesulfonic acid monohydrate | 6192-52-5 | MFCD00142137 | 99.8% | 190.22 g·mol⁻¹ | C7H10O4S | 500 G
p-Toluenesulfonic acid monohydrate is a strong organic sulfonic acid supplied as the monohydrate salt. It is commonly used as an acid catalyst in organic synthesis and for research and analytical applications. The solid material offers high purity and is suitable for laboratory reactions, analytical standards, and catalytic transformations.
- Strong organic acid and catalyst for dehydration and esterification reactions.
- Supplied as a monohydrate solid for convenient handling and storage.
- High purity (≈99.8%) appropriate for research and analytical use.
- Suitable for use as an analytical standard and reagent in synthesis.
- Compatible with common polar organic solvents; readily soluble.
- Available in multiple pack sizes to support small- and large-scale work.
eMolecules 80-48-8 | Methyl 4-toluenesulfonate | Oakwood Chemicals | MFCD00008417 | 186.230 | C8H10O3S | 98.000 | COS(=O)(=O)c1ccc(C)cc1 | 100g | 480156146
Methyl 4-toluenesulfonate | Oakwood Chemicals | 80-48-8 | MFCD00008417 | 186.230 | C8H10O3S | 98.000 | COS(=O)(=O)c1ccc(C)cc1 | 100g | 480156146
eMolecules 104-15-4 | 4-Methylbenzenesulfonic acid? | AA Blocks LLC172.200 | C7H8O3S | 0.000 | Cc1ccc(cc1)S(O)(=O)=O | 500g | 808217784
4-Methylbenzenesulfonic acid? | AA Blocks LLC | 104-15-4172.200 | C7H8O3S | 0.000 | Cc1ccc(cc1)S(O)(=O)=O | 500g | 808217784
Medchemexpress LLC P-toluenesulfonic acid-d7 monohydrate | 1219795-22-8 | 99.8% | 197.26 | C7H3D7O4S | 5 MG
p-Toluenesulfonic acid-d7 monohydrate is a deuterium-labeled reagent supplied as a solid for research use. It is used as an acid catalyst and isotopic standard for mechanistic studies, mass spectrometry, and synthetic chemistry where deuterium labeling is required.
- High purity (99.76%).
- Chemical formula: C7H3D7O4S.
- Molecular weight: 197.26 g·mol-1.
- Appearance: white to off-white solid.
- Available in small research quantities (e.g., 5 mg and 10 mg).
- Store at -20 °C, protected from light, under inert atmosphere.
- Useful as an isotopic tracer and internal standard in mass spectrometry.
eMolecules 80-48-8 | Methyl p-toluenesulfonate | Chem-Impex | MFCD00008417 | 186.230 | C8H10O3S | 99.000 | COS(=O)(=O)c1ccc(C)cc1 | 5kg | 703110501
Methyl p-toluenesulfonate | Chem-Impex | 80-48-8 | MFCD00008417 | 186.230 | C8H10O3S | 99.000 | COS(=O)(=O)c1ccc(C)cc1 | 5kg | 703110501
Medchemexpress LLC p-toluenesulfonic acid monohydrate | 6192-52-5 | MFCD00142137 | 99.8% | 190.22 g/mol | C7H10O4S | 1 ML
p-Toluenesulfonic acid monohydrate (CAS 6192-52-5) is a strong organic acid used as an acid catalyst in organic synthesis and laboratory research. It is available as a solid monohydrate and as a ready-to-use 10 mM solution in DMSO for convenient handling and dosing.
- Strong organic acid suitable for acid-catalyzed reactions.
- Ready-to-use 10 mM solution in DMSO for convenient dosing and reduced preparation time.
- High purity suitable for analytical and synthetic applications.
- Monohydrate form with defined molecular weight and chemical formula for reproducibility.
- Applicable to esterification, dehydration, and other acid-catalyzed transformations.
Medchemexpress LLC Propionylcholine p-toluenesulfonate | 1866-13-3 | MFCD00059975 | 99.6% | 331.43 g/mol | C15H25NO5S | 250 MG
Propionylcholine p-toluenesulfonate is a quaternary ammonium choline ester supplied as the p-toluenesulfonate salt for use in biochemical and neuroscience research. It is used to probe cholinergic signaling and esterase activity, and is provided with manufacturer analytical documentation for laboratory applications.
- Quaternary choline ester for cholinergic studies.
- Supplied as the p-toluenesulfonate salt for handling stability.
- High purity suitable for analytical and research assays.
- Available in small laboratory pack sizes for convenience.
- Documentation includes COA and SDS for traceability.
eMolecules 80-48-8 | Methyl p-toluenesulfonate | Combi-Blocks | MFCD00008417 | 186.230 | C8H10O3S | 95.000 | COS(=O)(=O)c1ccc(C)cc1 | 25g | 415498342
Methyl p-toluenesulfonate | Combi-Blocks | 80-48-8 | MFCD00008417 | 186.230 | C8H10O3S | 95.000 | COS(=O)(=O)c1ccc(C)cc1 | 25g | 415498342
eMolecules 80-48-8 | Methyl 4-toluenesulfonate | Oakwood Chemicals | MFCD00008417 | 186.230 | C8H10O3S | 98.000 | COS(=O)(=O)c1ccc(C)cc1 | 5g | 480156143
Methyl 4-toluenesulfonate | Oakwood Chemicals | 80-48-8 | MFCD00008417 | 186.230 | C8H10O3S | 98.000 | COS(=O)(=O)c1ccc(C)cc1 | 5g | 480156143
Medchemexpress LLC P-toluenesulfonic acid-d7 monohydrate | 1219795-22-8 | 99.8% | 197.26 g/mol | C7H3D7O4S | 25 MG
p-Toluenesulfonic acid-d7 monohydrate is the deuterium-labeled monohydrate of p-toluenesulfonic acid. It functions as a strong organic acid and is used both as an acid catalyst in synthetic chemistry and as an internal standard or tracer for quantitative NMR, GC-MS, and LC-MS analyses.
- Deuterium-labeled for use as an internal standard or tracer in NMR and mass spectrometry.
- High isotopic purity (99.76%) for accurate quantitative analysis.
- Solid form, easy to weigh and handle for small-scale analytical applications.
- Suitable as an acid catalyst in organic synthesis.
- Available in multiple small package sizes for analytical workflows.