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1

Apexbio Technology LLC Ribonic acid gamma lactone 5336-08-3 100mg

Ribonic acid gamma lactone (CAS 5336-08-3) is a small-molecule inhibitor targeting -galactosidase derived from Escherichia coli It is designed to inhibit enzyme activity thereby interfering with substrate hydrolysis in carbohydrate metabolic pathways Ribonic acid gamma lactone exerts its biological activity primarily through competitive binding to the active site of -galactosidase In in vitro studies ribonic acid gamma lactone demonstrates inhibitory activity with an inhibitory constant (Ki) of approximately 26 mM Based on these pharmacological properties ribonic acid gamma lactone holds research potential in studies examining enzyme-substrate interactions and carbohydrate metabolism mediated by bacterial -galactosidase

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2

Apexbio Technology LLC Ribonic acid gamma lactone 5336-08-3 500mg

Ribonic acid gamma lactone (CAS 5336-08-3) is a small-molecule inhibitor targeting -galactosidase derived from Escherichia coli It is designed to inhibit enzyme activity thereby interfering with substrate hydrolysis in carbohydrate metabolic pathways Ribonic acid gamma lactone exerts its biological activity primarily through competitive binding to the active site of -galactosidase In in vitro studies ribonic acid gamma lactone demonstrates inhibitory activity with an inhibitory constant (Ki) of approximately 26 mM Based on these pharmacological properties ribonic acid gamma lactone holds research potential in studies examining enzyme-substrate interactions and carbohydrate metabolism mediated by bacterial -galactosidase

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3

Medchemexpress LLC NH2 DOTA-GA | 1639843-65-4 | 100.0% | 518.56 g·mol⁻¹ | C21H38N6O9 | 25 MG

NH2 DOTA-GA is a DOTA-based bifunctional metal chelator used to prepare radionuclide drug conjugates. It is supplied as a solid powder and contains carboxylic acid groups capable of complexing metal ions, such as Gd(III).

  • DOTA-based bifunctional chelator for radionuclide conjugates.
  • Useful for metal ion complexation, including Gd(III).
  • CAS number 1639843-65-4 for unambiguous identification.
  • Molecular formula C21H38N6O9 and molecular weight 518.56 g·mol⁻¹.
  • High chemical purity suitable for research applications.
  • Solid powder with recommended storage at -20°C (powder) or -80°C/-20°C in solvent.

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4

Medchemexpress LLC NH2 DOTA-GA | 1639843-65-4 | 518.56 | C21H38N6O9 | 50 MG

NH2 DOTA-GA is a DOTA-based bifunctional metal chelator used to prepare radionuclide drug conjugates (RDCs), with carboxylic acid groups capable of complexing metal ions such as Gd(III).

  • Bifunctional DOTA chelator for radiolabeling of biomolecules.
  • Suitable for preparation of radionuclide-drug conjugates.
  • Molecular formula C21H38N6O9; molecular weight 518.56.
  • Available as a 50 mg powder; stable for 3 years at -20°C when stored as recommended.
  • Listed CAS number 1639843-65-4 for unambiguous identification.

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5

Medchemexpress LLC DL-mevalonolactone | 674-26-0 | MFCD00006648 | 99.2% | 130.14 g/mol | C6H10O3 | 250 MG

DL-Mevalonolactone is the δ-lactone form of mevalonic acid and an endogenous metabolite in the mevalonate pathway. Supplied as a research-grade chemical, it is used in biochemical and cell-based studies to investigate cholesterol biosynthesis, mitochondrial responses, and related pathway biology.

  • High reported purity approximately 99.2%.
  • Molecular weight 130.14 g/mol.
  • Chemical formula C6H10O3.
  • Available in multiple pack sizes, including a 250 mg solid format.
  • Suitable for biochemical assays, pathway studies, and mitochondrial function experiments.

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6

Medchemexpress LLC Nh2 DOTA-GA | 1639843-65-4 | 518.56 g/mol | C21H38N6O9 | 100 MG

NH2 DOTA-GA is an amino-functionalized DOTA-based metal chelator used to prepare radionuclide drug conjugates (RDCs). Its carboxylic acid groups complex metal ions (for example, Gd(III)), enabling radiolabeling and imaging agent development.

  • Amino-functionalized chelator suitable for conjugation.
  • Forms stable complexes with metal ions such as Gd(III).
  • Used in synthesis of radionuclide drug conjugates.
  • Available in multiple research-scale sizes, including 100 mg.
  • Molecular weight 518.56 g/mol and formula C21H38N6O9.

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7

Medchemexpress LLC Interferon-gamma receptor 1 (human) Fc fusion protein | >95.0% | 50 UG

Recombinant human interferon-gamma receptor 1 (IFN-γ R1/CD119) fused to human Fc and expressed in HEK293 cells. Supplied lyophilized for use in biochemical and cell-based assays to study IFN-γ signaling and receptor interactions. High purity and recommended storage and reconstitution conditions support reliable research performance.

  • Expressed in HEK293 cells with a C-terminal human Fc fusion.
  • Contains amino acids E18-G245 (accession P15260-1).
  • Molecular weight approximately 60-75 kDa.
  • Purity greater than 95.0% by reducing SDS-PAGE.
  • Formulated lyophilized from 0.22 μm filtered PBS, pH 7.4.
  • Do not reconstitute to concentrations below 100 μg/mL in ddH2O.
  • Store lyophilized at -20°C; after reconstitution, stable at 4°C for 1 week; long-term storage at -20°C or -80°C recommended for aliquots.
  • Supplied as 50 μg lyophilized quantity.

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