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Indole-3-carboxylate esters: Any compound containing a 1H-indole-3-carboxylate ester structure with the ester oxygen bearing a napthyl, quinolinyl, isoquinolinyl, or adamantyl group and substitution at the one position of the indole ring by an alkyl, haloalkyl, alkenyl, cycloalkylmethyl, cycloalkylethyl, benzyl, N-methyl-2-piperidinylmethyl, or ...
6-MeO-THH, or 6-methoxy-1,2,3,4-tetrahydroharman, is a β-carboline (or more specifically a pinoline) derivative and a structural isomer of tetrahydroharmine (7-MeO-THH). 6-MeO-THH is mentioned in Alexander Shulgin's book TiHKAL (Tryptamines I Have Known and Loved), stating that 6-MeO-THH is very similar to the other carbolines. [1]
Indole test positive: appearance of pink layer at top (e.g. Escherichia coli) Like many biochemical tests on bacteria, results of an indole test are indicated by a change in color following a reaction with an added reagent. Pure bacterial culture must be grown in sterile tryptophan or peptone broth for 24–48 hours before performing the test.
It is used for the diagnostical indole test, to determine the ability of the organism to split indole from the amino acid tryptophan. The indole produced yields a red complex with para-dimethylaminobenzaldehyde under the given conditions. [1] This was invented by the Hungarian physician Nicholas Kovács and was published in 1928.
Indole can also be metabolized by the liver into indoxyl sulfate, a compound that is toxic in high concentrations and associated with vascular disease and renal dysfunction. [2] AST-120 ( activated charcoal ), an intestinal sorbent that is taken by mouth , adsorbs indole, in turn decreasing the concentration of indoxyl sulfate in blood plasma.
β-Carbolines belong to the group of indole alkaloids and consist of a pyridine ring that is fused to an indole skeleton. [27] The structure of β-carboline is similar to that of tryptamine , with the ethylamine chain re-connected to the indole ring via an extra carbon atom, to produce a three-ringed structure.
The Ehrlich reagent is similar to a number of other indole tests: The van Urk reagent, which uses 0.125 g of p-DMAB, 0.2 mL of ferric chloride solution (25 mg/mL) in 100 mL of 65% sulfuric acid. [9] [10] [11] This is sometimes referred to as the Hofmann reagent or p-DMAB-TS (Test Solution) and gives slightly different colours with different ...
7-Methoxy-1-methyl-9H-pyrido[3,4-b]indole Harmine is a reversible inhibitor of monoamine oxidase A (RIMA). [17] Harmaline: C 13 H 14 N 2 O; 4,9-Dihydro-7-methoxy-1-methyl-3H-pyrido[3,4-b]indole Harmaline is also a RIMA. [18] Harmalol: C 12 H 12 N 2 O; 1-Methyl-4,9-dihydro-3H-pyrido[3,4-b]indol-7-ol. Tetrahydroharmine: C 13 H 16 N 2 O; 1,2,3,4 ...