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Pentynoic acid STP ester sodium is a water-soluble, alkyne-activated STP (sulfotetrafluorophenyl) ester reagent used to introduce a terminal alkyne handle onto proteins and peptides for bioconjugation. It enables amine-targeted coupling under mild, aqueous conditions and subsequent alkyne-based conjugation such as copper(I)-catalyzed azide-alkyne cycloaddition.
Contains a terminal propargyl (alkyne) group for click chemistry.
STP activated ester enables efficient coupling to lysine residues.
Water-soluble formulation suitable for reactions in aqueous buffers.
High purity for reproducible bioconjugation outcomes.
DMSO-soluble at high concentration; ultrasonication may be required.
Store sealed and away from moisture to preserve reagent activity.
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PBD-monoamide is a modified pyrrolobenzodiazepine (PBD) dimer used as an antibody-drug conjugate (ADC) cytotoxin intermediate for research applications. The material is supplied in a small-mass vial and requires protection from light and inert storage. Reported analytical data include purity and molecular properties.
Used as an antibody-drug conjugate (ADC) cytotoxin intermediate
Reported purity 96.4%
Molecular formula C33H36N4O7 and molecular weight 600.66 g/mol
Supplied in 10 MG vial for small-scale laboratory use
Storage: protect from light; solid at 4°C, in solvent -80°C (6 months) or -20°C (1 month)
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4-Pentenoic acid is a medium-chain unsaturated fatty acid 4-Pentenoic acid has hypoglycemic and fatty acid oxidation inhibitory activities 4-Pentenoic acid can affect blood glucose metabolism and energy metabolism through mechanisms such as inhibiting long-chain fatty acid oxidation reducing gluconeogenesis and promoting glucose utilization[1][2]
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Fumaric acid (Standard) is an analytical reference material of fumaric acid (CAS 110-17-8) intended for research and analytical applications. It is supplied as a white to off-white solid used in biochemical studies and as a reference compound for analytical methods.
Analytical standard for method development and quality control.
High purity suitable for analytical and research use.
White to off-white solid, easy to handle and store.
Available in multiple pack sizes, including 100 mg, for laboratory convenience.
Suitable as a biochemical reference and assay calibrant.
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Fumaric acid-13C4 is the 13C-labeled form of fumaric acid supplied as a white to off-white solid for use as a stable-isotope reference standard in metabolic and biochemical research. It is used in tracer experiments, metabolic profiling, and studies related to fumarase deficiency and oncometabolite pathways.
13C-labeled stable-isotope reference standard for metabolic studies.
Stated chemical purity 98.0%.
Molecular formula 13C4H4O4; molecular weight 120.04.
Suitable for tracer experiments and metabolic profiling.
Available in small research pack sizes for analytical use.
Documentation available: data sheet, certificate of analysis, and safety data sheet.
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Fumaric acid is an unsaturated dicarboxylic acid and a citric acid cycle intermediate used in biochemical and pharmacological research. Supplied as a white to off-white solid and available as a ready-to-use 10 mM solution in DMSO (1 mL), it is used in in vitro assays, metabolic studies, and anti-inflammatory mechanism research.
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