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Hydrogen sulfide (None)
- Target
- None
- Molecular classification
- Gasotransmitter, Inorganic molecule
01
Overview
Hydrogen sulfide (H₂S) is a colorless, flammable, and highly toxic gas known for its characteristic "rotten egg" odor. Beyond its toxicity, it functions as an endogenous signaling molecule (gasotransmitter) playing roles in physiological processes. It acts as a chemical asphyxiant by inhibiting cellular respiration. Exposure symptoms vary by concentration, and it poses environmental hazards due to its flammability, heavier-than-air property, and potential for olfactory fatigue.
- Other names
- Hydrosulfuric acidSewer gasStink dampSwamp gasH₂S
02
Mechanism of action
Inhibits cellular respiration
03
Biological functions
NeuromodulationVascular regulationEndogenous signaling
04
Disease associations
Exposure hazardAsphyxiationToxicity
05
Safety considerations
Highly toxicFlammableExplosiveOlfactory fatigueAsphyxiantHeavier than air
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