7722-84-1 | Hydrogen Peroxide (H₂O₂)

Chemical type

• Reactive oxygen species (ROS)
• Signaling molecule

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• Reactive oxygen species (ROS)
• Redox-active signalling molecule

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• Oxidizing agent

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Key properties

• High permeability via XIPs, PIPs (e.g., PIP2;1), and TIPs
• Negligible water permeability in some XIPs
• Modulated by phosphorylation (e.g., Ser121 in PIP2;1)

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• Small, membrane-permeable oxidant
• Acts as both a signalling molecule and oxidative stress agent
• Can reversibly oxidise cysteine residues in proteins

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• Decomposes to highly reactive •OH radicals in catalytic systems
• Effective in acidic conditions for pollutant oxidation
• Non-selective reactivity for breaking chemical bonds in organics

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• Redox signaling in stress responses (e.g., drought, salinity, hypoxia)
• Triggers stomatal closure via ABA pathways
• Involved in pathogen defense and innate immunity

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• Exogenous ROS treatment to trigger redox signalling
• Positive control for symplastic ROS detection
• Investigation of ROS–Ca²⁺ signalling crosstalk

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• Reagent in Fenton-like advanced oxidation processes for degrading refractory pollutants like azo dyes
• Generates •OH for cleavage of dye chromophoric structures

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Classification by use

• Signaling molecules transported by AQPs
• Chemicals in oxidative stress and defense mechanisms

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• Chemicals used as signalling molecules
• Chemicals used to induce oxidative stress
• Chemicals used in redox biology research

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• Oxidants in wastewater treatment and environmental remediation

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A trustworthy factory and manufacturer

1. [Cite:1] Systematic Review of Plant AQPs: Molecular mechanisms, intracellular trafficking, and emerging roles in stress adaptation, Current Plant Biology, Volume 45, January 2026, 100586
2. [Cite:2] Ca2+ and ROS signalling exhibit divergent root-specific dynamics in Arabidopsis responses to abiotic stress and PAMPs, Current Plant Biology, Volume 45, January 2026, 100571
3. [Cite:3] The Rapid Catalytic Degradation of Reactive Black 5 Using Mo51Fe34B15 Metallic Glass Wire, Metals, 2025, 15(10), 1160