LY-320,135
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| ECHA InfoCard | 100.190.302 |
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| Formula | C24H17NO4 |
| Molar mass | 383.403 g·mol−1 |
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LY-320,135 is a drug used in scientific research which acts as a selective antagonist of the cannabinoid receptor CB1. It was developed by Eli Lilly and Company in the 1990s.
LY-320,135 displays fairly good selectivity, with a binding affinity for CB1 around 70x stronger than for CB2,[1] but both its potency and selectivity are modest compared to newer agents, and at higher doses it also binds to a range of non-cannabinoid receptors. However LY-320,135 is still fairly widely used in research, particularly for elucidating the mechanisms by which many CB1 antagonists act as inverse agonists at higher doses.[2]
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