2492 (2S,4R,5S)-Muscarine (2S,4R,5S)-Muscarine is an exogenous organic compound with the formula C9H20NO2 and an average molecular weight of 174.26 g/mol. It exists as a solid at room temperature. (2S,4R,5S)-Muscarine belongs to the carbohydrates and carbohydrate conjugates, a subclass of organooxygen compounds within the organic compounds. The compound acts as a competitive inhibitor that mimics the action of the neurotransmitter acetylcholine at acetylcholine receptors. It has eight recorded protein targets, including the acetylcholine receptor subunits alpha (CHRNA1), beta (CHRNB1), delta (CHRND), and epsilon (CHRNE). Additionally, it targets the muscarinic acetylcholine receptors M1 (CHRM1), M2 (CHRM2), and M4 (CHRM4). 300-54-9 5079496 C9H20NO2 White powder. Oral, dermal, inhalation, and parenteral (contaminated drugs). (A3101) Muscarine is a competitive inhibitor. It mimics the action of the neurotransmitter acetylcholine at acetylcholine receptors. (L1011) No indication of carcinogenicity to humans (not listed by IARC). Muscarine is only a trace compound in the fly agaric Amanita muscaria; the pharmacologically more relevant compound from this mushroom is muscimol. Mushrooms in the genera Entoloma and Mycena have also been found to contain levels of muscarine which can be dangerous if ingested. Muscarine has been found in harmless trace amounts in Boletus, Hygrocybe, Lactarius and Russula. (L1011) Intoxication generally subsides within 2 hours. Death is rare, but may result from cardiac or respiratory failure in severe cases. (L1011) Muscarine poisoning is characterized by increased salivation, sweating (perspiration), and tearflow (lacrimation) within 15 to 30 minutes after ingestion of the mushroom. With large doses, these symptoms may be followed by abdominal pain, severe nausea, diarrhea, blurred vision, and labored breathing. (L1011) The specific antidote is atropine. (L1011) 2009-07-03T20:53:35Z 2026-04-03T21:35:00Z http://en.wikipedia.org/wiki/Muscarine C07473 522933 D009116 Muscarine true [H][C@@]1(C)O[C@]([H])(C[N+](C)(C)C)C[C@@]1([H])O C9H20NO2 InChI=1S/C9H20NO2/c1-7-9(11)5-8(12-7)6-10(2,3)4/h7-9,11H,5-6H2,1-4H3/q+1/t7-,8-,9+/m0/s1 UQOFGTXDASPNLL-XHNCKOQMSA-N 174.2601 174.148855309 Exogenous Solid HMDB29936 4255959 CHEM002041 DTXSID50184081 NS00028831 29.46 59.893100000000004 20.10146678640744 2 2 1 14.11178387341359 -3.1873057337688957 1 1 -2.98 -2.51 6.41e-01 g/l Organic compounds Organic oxygen compounds Organooxygen compounds Carbohydrates and carbohydrate conjugates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 776t3gAAAAAQAAAAAwAAAAAAAAAMAAAADAAAAIABBiA0AAAAAgEEBgBgAAAA AQMIACAAAAACBiA0AAAAAgEEBgBgAAAAAgIHICIAAAABBAYAYAAAAAEDBgBg AAAAAQMGAGAAAAABAwYAYAAAAAICBiA0AAAAAQEECABgAAAAAQELAAEAAAIA AgMAAwQABAUABQYABQcABQgAAwkACQoACgsACgAAQgEAAAAFAAIDCQoXBAAA AAAAAAAW 2026-09-19T04:00:28Z