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| ECHA InfoCard | 100.231.402 | 
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| Formula | C11H14N2O | 
| Molar mass | 190.242 g/mol | 
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2-Methyl-5-hydroxytryptamine (2-Methylserotonin, 2-Methyl-5-HT) is a tryptamine derivative closely related to the neurotransmitter serotonin which acts as a moderately selective full agonist at the 5-HT3 receptor.