Hydrogen sulfide is a chemical compound with the formula H2S. It is a colorless chalcogen-hydride gas, and is toxic, corrosive, and flammable. Trace amounts in ambient atmosphere have a characteristic foul odor of rotten eggs. Swedish chemist Carl Wilhelm Scheele is credited with having discovered the chemical composition of purified hydrogen sulfide in 1777.
Hydrogen sulfide is toxic to humans and most other animals by inhibiting cellular respiration in a manner similar to hydrogen cyanide. When it is inhaled or its salts are ingested in high amounts, damage to organs occurs rapidly with symptoms ranging from breathing difficulties to convulsions and death. Despite this, the human body produces small amounts of this sulfide and its mineral salts, and uses it as a signalling molecule.
Hydrogen sulfide is often produced from the microbial breakdown of organic matter in the absence of oxygen, such as in swamps and sewers; this process is commonly known as anaerobic digestion, which is done by sulfate-reducing microorganisms. It also occurs in volcanic gases, natural gas deposits, and sometimes in well-drawn water. |
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InChI=1S/C2H2O3/c3-1-2(4)5/h1H,(H,4,5) |
HHLFWLYXYJOTON-UHFFFAOYSA-N |
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Mus musculus
(NCBI:txid10090)
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Source: BioModels - MODEL1507180067
See:
PubMed
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Escherichia coli
(NCBI:txid562)
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See:
PubMed
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Bronsted acid
A molecular entity capable of donating a hydron to an acceptor (Bronsted base).
(via oxoacid )
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mouse metabolite
Any mammalian metabolite produced during a metabolic reaction in a mouse (Mus musculus).
Escherichia coli metabolite
Any bacterial metabolite produced during a metabolic reaction in Escherichia coli.
human metabolite
Any mammalian metabolite produced during a metabolic reaction in humans (Homo sapiens).
Saccharomyces cerevisiae metabolite
Any fungal metabolite produced during a metabolic reaction in Baker's yeast (Saccharomyces cerevisiae ).
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α-ketoacetic acid
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NIST Chemistry WebBook
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formylformic acid
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NIST Chemistry WebBook
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Glyoxalate
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KEGG COMPOUND
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Glyoxalsäure
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ChEBI
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Glyoxylate
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KEGG COMPOUND
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Glyoxylic acid
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KEGG COMPOUND
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GLYOXYLIC ACID
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PDBeChem
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Glyoxylsäure
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ChEBI
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oxalaldehydic acid
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ChemIDplus
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oxoethanoic acid
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ChemIDplus
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25752
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Gmelin Registry Number
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Gmelin
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298-12-4
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CAS Registry Number
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ChemIDplus
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298-12-4
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CAS Registry Number
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NIST Chemistry WebBook
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741891
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Reaxys Registry Number
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Reaxys
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11479160
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PubMed citation
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Europe PMC
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16396466
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PubMed citation
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Europe PMC
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22580421
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PubMed citation
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Europe PMC
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23790896
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PubMed citation
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Europe PMC
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