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Tetrahydroisoquinoline
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This article is about the simple heterocyclic amine. For the selective MC4 agonist, see THIQ.
Tetrahydroisoquinoline (TIQ or THIQ) is an organic compound with the chemical formula C9H11N. Classified as a secondary amine, it is derived from isoquinoline by hydrogenation. It is a colorless viscous liquid that is miscible with most organic solvents. The tetrahydroisoquinoline skeleton is encountered in a number of bioactive compounds and drugs.[2][3]
Quick Facts Names, Identifiers ...
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Names | |
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Preferred IUPAC name
1,2,3,4-Tetrahydroisoquinoline | |
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3D model (JSmol) |
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Abbreviations | TIQ, THIQ |
ChEMBL | |
ChemSpider |
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ECHA InfoCard | 100.001.864 ![]() |
EC Number |
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PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C9H11N | |
Molar mass | 133.19 g/mol |
Appearance | Deep yellow liquid |
Density | 1.05 g/mL |
Melting point | −30 °C (−22 °F; 243 K) |
Boiling point | 235 to 239 °C (455 to 462 °F; 508 to 512 K) |
Hazards | |
GHS labelling:[1] | |
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Danger | |
H301, H310, H314, H332, H371, H412 | |
P260, P261, P262, P264, P270, P271, P273, P280, P301+P310, P301+P330+P331, P302+P350, P302+P352, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P309+P311, P310, P312, P322, P330, P332+P313, P337+P313, P361, P362, P363, P403+P233, P405, P501 | |
Flash point | 99 °C (210 °F; 372 K) (closed cup) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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