Benzenesulfonic acids and derivatives
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.
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.
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.
Medchemexpress LLC P-toluenesulfonic acid-d7 monohydrate | 1219795-22-8 | 99.8% | 197.26 | C7H3D7O4S | 10 MG
p-Toluenesulfonic acid-d7 monohydrate is a deuterium-labeled analog of p-toluenesulfonic acid (monohydrate) used as a strong organic acid and catalyst in organic synthesis and analytical studies. The deuterium labeling supports mechanistic investigations and NMR tracing, and the material is supplied at high isotopic and chemical purity for research use.
- Deuterium-labeled for tracing and NMR studies.
- Monohydrate form for consistent handling and reproducibility.
- High purity (99.76%) suitable for analytical and research applications.
- Functions as a strong organic acid and catalyst in synthesis.
- Available in small pack sizes for laboratory and analytical work.
Medchemexpress LLC QL-X-138 | 1469988-63-3 | 99.8% | 421.45 | C25H19N5O2 | 1MG
QL-X-138 is a small-molecule BTK/MNK dual kinase inhibitor that covalently binds to BTK and non-covalently to MNK. It is provided as a high-purity solid for laboratory research and has been characterized in preclinical studies for activity against hematologic malignancies and dengue virus.
- Dual inhibition of Bruton tyrosine kinase (BTK) and MAPK-interacting kinase (MNK).
- Covalent binding to BTK and non-covalent binding to MNK.
- High-purity solid form suitable for laboratory research.
- Molecular formula C25H19N5O2 and molecular weight 421.45.
- Demonstrated preclinical activity in models of lymphoma, leukemia, and dengue virus.
- For research use only; not for human or clinical use.
Medchemexpress LLC I-138 | 2098211-50-6 | C26H23F3N6O | 50 MG
I-138 is an orally active, reversible inhibitor of USP1-UAF1 (IC50: 4.1 nM; Ki: 5.4 nM), structurally related to ML323. It induces monoubiquitination of FANCD2 and PCNA in cells and eliminates USP1 autocleavage in cells.
- Eliminates USP1 self-lysis in HAP-1 USP1 WT and knockout cells
- Induces monoubiquitination of FANCD2 and PCNA in MDA-MB-436 cells
- Dose-dependently inhibits MDA-MB-436 cell viability
- Results in USP1 inhibition and modest antitumor activity in mice bearing MDA-MB-436 tumors
- Benefits BRCA1/2 mutant tumor inhibition when combined with Niraparib
Medchemexpress LLC Setmelanotide (monoacetate) | 2759937-80-7 | 99.8% | 1177.36 | 25 MG
Setmelanotide (monoacetate) is a melanocortin 4 receptor (MC4R) agonist. It acts on human and rat MC4R with EC50 values of 0.27 nM and 0.28 nM, respectively, and is intended for research use only.
- Acts on human and rat MC4R
- Stable as a solid
- Suitable for research use
Medchemexpress LLC 2-Ketoglutaric acid-13C | 108395-15-9 | 97.9% | 147.09 | 500 UG
2-Ketoglutaric acid-13C is a 13C labeled 2-Ketoglutaric acid. It is an intermediate in the production of ATP or GTP in the Krebs cycle and serves as the primary carbon skeleton for nitrogen-assimilatory reactions. This compound can be utilized as a tracer or as an internal standard for quantitative analysis. Stable heavy isotopes have been incorporated into drug molecules as tracers for quantitation during drug development.
- 13C labeled compound
- Intermediate in ATP or GTP production in Krebs cycle
- Primary carbon skeleton for nitrogen-assimilatory reactions
- Reversible inhibitor of tyrosinase (IC50 of 15 mM)
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis (NMR, GC-MS, LC-MS)
Medchemexpress LLC 5-Sulfosalicylic acid dihydrate | 5965-83-3 | 99.9% | 10 MM 1 ML
5-Sulfosalicylic acid dihydrate is a sulfonated salicylic acid derivative. It is effective against the breast cancer cell line, MCF-7, with less toxicity and possesses antioxidant activities.
- It is a sulfonated salicylic acid derivative.
- It demonstrates effectiveness against the breast cancer cell line, MCF-7, with reduced toxicity.
- It possesses antioxidant activities.
- It can reduce the viability of MCF-7 cells in vitro.
- It is for research use only.
Medchemexpress LLC Terephthalic acid disodium salt | 10028-70-3 | MFCD00013137 | 99.9% | 210.09 g/mol | C8H4Na2O4 | 5 G
Disodium terephthalate is the disodium salt of terephthalic acid, used as a chemical building block and biochemical reagent. It serves as a precursor in polyester (PET) production and is used in laboratory research applications, including formulation of skin tumor models. The material is provided as a solid for bench-scale experimental work.
- High purity suitable for analytical and research applications.
- Molecular weight 210.09 g/mol; formula C8H4Na2O4.
- Soluble in water (~70 mg/mL); ultrasonic agitation may be required.
- Supplied in small pack sizes convenient for laboratory use.
- Useful as a PET precursor and reagent in biochemical assays.
Medchemexpress LLC Alkali blue 6B monos 50g
Alkali blue 6B monosodium (IND) is a basic dye that can be used as a reagent in biochemical and medical research Alkali blue 6B monosodium (IND) interacts with various proteins and can be used in protein adsorption studies Alkali blue 6B monosodium (IND) contains SO3H- NH and OH groups that may react with divalent heavy metal ions and can be used for the removal of heavy metals from aqua[1][2]