HMA

Product details

• Chemical name: 3-amino-5-(azepan-1-yl)-6-chloro-N-(diaminomethylidene)pyrazine-2-carboxamide.
• Also known as: 5-(N,N-Hexamethylene) amiloride
• CAS number: 1428-95-1
• Molecular formula: C12H18ClN7O.
• Purity: >98%
• Concentration: 1-300 µM.
• Form: Lyophilized powder.
• Solubility: Up to 100mM in DMSO. Centrifuge all products before use (10000 x g 5 min).
• Reconstitution: Centrifuge the vial before adding solvent (10,000 x g for 5 minutes) to spin down all the powder to the bottom of the vial. The lyophilized product may be difficult to visualize. Add solvent directly to the centrifuged vial. Tap the vial to aid in dissolving the lyophilized product. Tilt and gently roll the liquid over the walls of the vial. Avoid vigorous vortexing. Light vortexing for up to 3 seconds is acceptable if needed. For long-term storage in solution, we recommend preparing a stock solution by dissolving the product in sterile water at a concentration of at least 0.1 mg/mL. Divide the stock solution into small aliquots and store at -20°C. Before use, thaw the relevant vial(s) and dilute to the desired working concentration in your working buffer. It is recommended to prepare fresh solutions in working buffers just before use. For long-term storage of diluted solutions, we recommend adding 0.1% BSA. Repeat freeze-thawing may result in loss of activity.
• Shipping: Shipped at room temperature. Product as supplied can be stored intact at room temperature for several weeks. For longer periods, it should be stored at -20°C.
• Target: NHE exchangers, TRPA1, ASIC3 channels, P2X7 receptors
• Source: Synthetic
• Activity: HMA is an amiloride derivative, shown to inhibit TRPA1-mediated calcium signal with IC50 of 35 µM1. It is an inhibitor of the Na+/H+ exchanger (NHE), with Ki of 0.013-2.4 µM for various NHE isoforms2. HMA also blocks ASIC3 channels by 51% at 20 µM3.
• Alternative names: 5-(N,N-Hexamethylene) amiloride

Scientific background

HMA is a TRPA1 channel blocker with an IC50 value of 35 µM, an inhibitor of the Na+/H+ exchangers (NHE) and a blocker of ASIC3 channel (acid-sensing ion channels)1-3. HMA also antagonizes P2X7 receptors, although it is not potent4.HMA as an NHE inhibitor, is considered to be a promising adjuvant drug for overcoming acquired resistance to treatment in various malignant hemopathies1-3.

Lead time: 1-2 Business Days

Country of origin: Israel/IL

Applications key

Application key: FC- Flow cytometry, IFC- Indirect flow cytometry, IHC- Immunohistochemistry,LCI- Live cell imaging, Calcium imaging assay,Cell survival assay, Electrophysiology, Neurite outgrowth assay.

Bioassay tested: Yes

• SDS (PDF)

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• Add-on labels & handles: D/¹³C/¹⁵N isotopes (LC-MS/internal standards), azide/alkyne or other functional handles for conjugation
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