In today's world, Cyclorphan has become a topic of great relevance and interest to a wide sector of society. Whether due to its impact on the economy, politics, science or people's daily lives, Cyclorphan has sparked great debate and analysis in various areas. In this article we will explore the different facets and perspectives related to Cyclorphan, as well as its influence on the world today. Through various sources and approaches, we will try to shed light on this topic and offer a more complete and profound vision of its importance and consequences.
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| ECHA InfoCard | 100.021.825 |
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| Formula | C20H27NO |
| Molar mass | 297.442 g·mol−1 |
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| Density | 1.19 g/cm3 |
| Melting point | 188 °C (370 °F) |
| Boiling point | 458.4 °C (857.1 °F) |
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Cyclorphan is an opioid analgesic of the morphinan family that was never marketed.[1] It acts as a μ-opioid receptor (MOR) weak partial agonist or antagonist, κ-opioid receptor (KOR) full agonist, and, to a much lesser extent, δ-opioid receptor (DOR) agonist (75-fold lower affinity relative to the KOR).[2][3] The drug was first synthesized in 1964 by scientists at Research Corporation.[4][5]: 232 In clinical trials, it had relatively long duration, good absorption, and provided strong pain relief but produced psychotomimetic effects via KOR activation, so its development was not continued.[1][5]: 232, 237