6-Hydroxymelatonin

6-Hydroxymelatonin
Names
	Preferred IUPAC name N-[2-(6-Hydroxy-5-methoxy-1H-indol-3-yl)ethyl]acetamide
	Other names 6-Oxymelatonin
Identifiers
CAS Number	2208-41-5 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:198;
ChemSpider	1794;
ECHA InfoCard	100.164.426
KEGG	C05643;
PubChem CID	1864;
UNII	TV437T5077 ;
CompTox Dashboard (EPA)	DTXSID00176577 ;
	InChI InChI=1S/C13H16N2O3/c1-8(16)14-4-3-9-7-15-11-6-12(17)13(18-2)5-10(9)11/h5-7,15,17H,3-4H2,1-2H3,(H,14,16) Key: OMYMRCXOJJZYKE-UHFFFAOYSA-N; InChI=1/C13H16N2O3/c1-8(16)14-4-3-9-7-15-11-6-12(17)13(18-2)5-10(9)11/h5-7,15,17H,3-4H2,1-2H3,(H,14,16) Key: OMYMRCXOJJZYKE-UHFFFAOYAK;
	SMILES CC(=O)NCCC1=CNC2=CC(=C(C=C21)OC)O;
Properties
Chemical formula	C13H16N2O3
Molar mass	248.282 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

6-Hydroxymelatonin (6-OHM) is a naturally occurring, endogenous, major active metabolite of melatonin.^[1] Similar to melatonin, 6-OHM is a full agonist of the MT₁ and MT₂ receptors.^[2]^[3] It is also an antioxidant and neuroprotective, and is even more potent in this regard relative to melatonin.^[4]^[5]

References

^ Hardeland R (2010). "Melatonin metabolism in the central nervous system". Curr Neuropharmacol. 8 (3): 168–81. doi:10.2174/157015910792246164. PMC 3001211. PMID 21358968.
^ Dubocovich ML (1988). "Pharmacology and function of melatonin receptors". FASEB J. 2 (12): 2765–73. doi:10.1096/fasebj.2.12.2842214. PMID 2842214. S2CID 45788574.
^ Browning, Christopher; Beresford, Isabel; Fraser, Neil; Giles, Heather (2000). "Pharmacological characterization of human recombinant melatonin mt1and MT2receptors". British Journal of Pharmacology. 129 (5): 877–886. doi:10.1038/sj.bjp.0703130. ISSN 0007-1188. PMC 1571913. PMID 10696085.
^ Maharaj DS, Glass BD, Daya S (2007). "Melatonin: new places in therapy". Biosci. Rep. 27 (6): 299–320. doi:10.1007/s10540-007-9052-1. PMID 17828452. S2CID 32437175.
^ Álvarez-Diduk R, Galano A, Tan DX, Reiter RJ (2015). "N-Acetylserotonin and 6-Hydroxymelatonin against Oxidative Stress: Implications for the Overall Protection Exerted by Melatonin". J Phys Chem B. 119 (27): 8535–43. doi:10.1021/acs.jpcb.5b04920. PMID 26079042.

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[pmid21358968-1] Hardeland R (2010). "Melatonin metabolism in the central nervous system". Curr Neuropharmacol. 8 (3): 168–81. doi:10.2174/157015910792246164. PMC 3001211. PMID 21358968.

[pmid2842214-2] Dubocovich ML (1988). "Pharmacology and function of melatonin receptors". FASEB J. 2 (12): 2765–73. doi:10.1096/fasebj.2.12.2842214. PMID 2842214. S2CID 45788574.

[BrowningBeresford2000-3] Browning, Christopher; Beresford, Isabel; Fraser, Neil; Giles, Heather (2000). "Pharmacological characterization of human recombinant melatonin mt1and MT2receptors". British Journal of Pharmacology. 129 (5): 877–886. doi:10.1038/sj.bjp.0703130. ISSN 0007-1188. PMC 1571913. PMID 10696085.

[pmid17828452-4] Maharaj DS, Glass BD, Daya S (2007). "Melatonin: new places in therapy". Biosci. Rep. 27 (6): 299–320. doi:10.1007/s10540-007-9052-1. PMID 17828452. S2CID 32437175.

[pmid26079042-5] Álvarez-Diduk R, Galano A, Tan DX, Reiter RJ (2015). "N-Acetylserotonin and 6-Hydroxymelatonin against Oxidative Stress: Implications for the Overall Protection Exerted by Melatonin". J Phys Chem B. 119 (27): 8535–43. doi:10.1021/acs.jpcb.5b04920. PMID 26079042.

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[2]

[3]

[4]

[5]

v t e Antioxidants
Food antioxidants	6-Hydroxymelatonin Acetyl-L-carnitine (ALCAR) Alpha-lipoic acid (ALA) Ascorbic acid (vitamin C) Carotenoids (vitamin A) Curcumin Edaravone Polyphenols Glutathione Hydroxytyrosol L-carnitine Ladostigil Melatonin Mofegiline N-Acetylcysteine (NAC) N-Acetylserotonin (NAS) Oleocanthal Oleuropein Rasagiline Resveratrol Selegiline Selenium Tocopherols (vitamin E) Tocotrienols (vitamin E) Tyrosol Ubiquinone (coenzyme Q) Uric acid
Fuel antioxidants	Butylated hydroxyanisole Butylated hydroxytoluene 2,6-Di-tert-butylphenol 1,2-Diaminopropane 2,4-Dimethyl-6-tert-butylphenol Ethylenediamine
Measurements	Folin method ORAC TEAC FRAP

v t e Melatonin receptor modulators
MT₁Tooltip Melatonin receptor 1	Agonists: 2-Iodomelatonin 6-Hydroxymelatonin Agomelatine Fabomotizole (afobazole) GR-196,429 Melatonin N-Acetylserotonin (normelatonin) Piromelatine Ramelteon Tasimelteon TIK-301 (LY-156,735) Antagonists: Luzindole
MT₂Tooltip Melatonin receptor 2	Agonists: 2-Iodomelatonin 6-Hydroxymelatonin Agomelatine GR-196,429 Melatonin N-Acetylserotonin (normelatonin) Piromelatine Ramelteon Tasimelteon TIK-301 (LY-156,735) Antagonists: Luzindole
Unsorted	Agonists: 2-Phenylmelatonin 5-Methoxyluzindole 6-Chloromelatonin 6-Fluoromelatonin 6-Methoxymelatonin 6,7-Dichloro-2-methylmelatonin 8-M-PDOT AMMTC GR-135,531 (of MT₃Tooltip melatonin receptor 1C) N-Acetyltryptamine N-Butanoylmelatonin N-Propionylmelatonin S-24268 S-25150 Antagonists: 4-P-ADOT 4-P-PDOT DH-97 N-Acetyltryptamine (of MT₃) Prazosin (of MT₃) S-20928 S-22153 S-24601 S-25567 S-26131
See also: Receptor/signaling modulators Adrenergics Dopaminergics Serotonergics Monoamine metabolism modulators

v t e Tryptamines
Tryptamines	1-Methylpsilocin 2-HO-NMT 2-Me-DET 2-Methyl-5-HT 2,N,N-TMT 4,5-DHP-DMT 4-AcO-DALT 4-AcO-DET 4-AcO-DiPT 4-AcO-DPT 4-AcO-EPT 4-AcO-MALT 4-AcO-MET 4-AcO-MiPT 4-AcO-NMT 4-AcO-TMT 4-F-5-MeO-DMT 4-HO-5-MeO-DMT 4-HO-DALT 4-HO-DBT 4-HO-DET 4-HO-DiPT 4-HO-DPT 4-HO-DSBT 4-HO-EPT 4-HO-MALT 4-HO-MET 4-HO-McPT 4-HO-McPeT 4-HO-MiPT 4-HO-MPT 4-HO-MsBT 4-HO-NALT 4-HO-NMT 4-HO-PiPT 4-HO-pyr-T 4-HO-TMT 4-HT 4-MeO-DiPT 4-MeO-DMT 4-MeO-MiPT 4-PrO-DMT 4,5-MDO-DMT 4,5-MDO-DiPT 5-BT 5-Bromo-DMT 5-CT 5-Chloro-DMT 5-Ethoxy-DMT 5-Ethyl-DMT 5-Fluoro-DET 5-Fluoro-DMT 5-Fluoro-EPT 5-Fluoro-MET 5-HO-DiPT 5-HTP (oxitriptan) 5-MeO-2-TMT 5-MeO-34MPEMT 5-MeO-7,N,N-TMT 5-MeO-DALT 5-MeO-DBT 5-MeO-DET 5-MeO-DiPT 5-MeO-DMT 5-MeO-DPT 5-MeO-EiPT 5-MeO-EPT 5-MeO-MALT 5-MeO-MET 5-MeO-MiPT 5-MeO-NMT 5-MeO-pyr-T 5-MeO-NBpBrT 5-MeO-T-NBOMe 5-MeS-DMT 5-Methoxytryptamine (5-MT; mexamine) 5-Methyl-DMT 5-Methyltryptamine 5-MT-NB3OMe 5-(Nonyloxy)tryptamine 5,6-MeO-MiPT 5,6-MDO-DiPT 5,6-MDO-DMT 5,6-MDO-MiPT 5,6-DHT 5,7-DHT 6-Fluoro-DMT 6-MeO-DMT 7-Methyl-DMT Acetryptine (5-AT) Aeruginascin (4-PO-TMT) AGH-107 AGH-192 AH-494 ALiPT Alpertine Baeocystin (4-PO-NMT) Benzotript (4-chlorobenzoyl-L-tryptophan) Bufotenidine (5-HTQ) Bufotenin (5-HO-DMT) Convolutindole A CP-132,484 DALT DBT Desformylflustrabromine DET DiPT DMT DPT E-6801 E-6837 EiPT EMDT EPT Ethocybin (4-PO-DET) FGIN-127 FGIN-143 FT-104 HIOC Idalopirdine Indolylethylfentanyl Indorenate Iprocin (4-HO-DiPT) Lespedamine MET Methylbutyltryptamine Miprocin (4-HO-MiPT) MiPT MPT Milipertine MS-245 MSBT N-Feruloylserotonin (moschamine) NET NMT Norbaeocystin (4-PO-T) NTBT O-4310 O-Pivalylbufotenine Oxypertine PiPT Psilacetin (O-acetylpsilocin; 4-AcO-DMT) Psilocin (4-HO-DMT) Psilocybin (4-PO-DMT) Pyr-T RS134-49 Serotonin (5-HT) Solypertine ST-1936 Tryptamine Tryptophan Yuremamine Z2876442907
N-Acetyltryptamines	2-Iodomelatonin 2-Phenylmelatonin 5-Methoxyluzindole 6-Chloromelatonin 6-Fluoromelatonin 6-Hydroxymelatonin 6-Methoxymelatonin 6,7-Dichloro-2-methylmelatonin α-Methylmelatonin Luzindole Melatonin Normelatonin (N-acetylserotonin; NAS) N-Acetyltryptamine N-Butanoylmelatonin N-Propionylmelatonin Piromelatine TIK-301
α-Alkyltryptamines	2,α-DMT 4-HO-αMT 4-HO-MPMI (lucigenol) 4-Me-αET 4-Me-αMT 5-Chloro-αMT 5-Ethoxy-αMT 5-Fluoro-αET 5-Fluoro-αMT 5-iPrO-αMT 5-MeO-α,N,N-TMT 5-MeO-αET 5-MeO-αMT 5-MeO-MPMI 5-Methyl-αET 6-Fluoro-αMT 7-Chloro-αMT 7-Methyl-αET α-Methyl-5-HTP α-Methylmelatonin α-Methylserotonin (5-HO-αMT) α-Methyltryptophan (αMTP) α,N-DMT (N-methyl-αMT) α,N,N-TMT α,N,O-TMS αET (etryptamine) αMT AL-37350A (4,5-DHP-αMT) BNC-210 BW-723C86 CP-135807 IPAP (α,N-DPT) MPMI
Triptans	Almotriptan Donitriptan Eletriptan Frovatriptan L-694247 Rizatriptan Sumatriptan Zolmitriptan
Cyclized tryptamines	Bay R 1531 Ciclindole Cyclic 3-OHM Ergolines and lysergamides (e.g., LSD) Flucindole Harmala alkaloids and β-carbolines (e.g., 6-MeO-THH, 9-Me-BC, β-carboline (norharman), harmaline, harmalol, harmane, harmine, pinoline, tetrahydroharmine, tryptoline) Iboga alkaloids and related (e.g., DM-506 (ibogaminalog), ibogaine, ibogamine, noribogaine, tabernanthalog, tabernanthine) Metralindole NDTDI PHA-57378 PNU-22394 PNU-181731 RU-28306 Yohimbans (e.g., yohimbine, rauwolscine, spegatrine, corynanthine, ajmalicine, reserpine, deserpidine, rescinnamine)
Related compounds	2-Azapsilocin 4-Aza-5-MeO-DPT 5-Aza-4-MeO-DiPT 5-HIAA 5-HIAL 5-HITCA 5-MIAL 7-Aza-5-MeO-DiPT AAZ-A-154 AL-34662 AL-38022A BRL-54443 CP-94253 EMD-386088 I-32 IAL Latrepirdine LY-367265 Pirlindole (R)-69 (3IQ) Ro60-0175 Ro60-0213 RU-24,969 Sertindole SN-22 Substituted benzofurans (e.g., 3-APB, 5-MeO-DiBF, BPAP, dimemebfe, mebfap) Tepirindole Tetrindole Triptans (e.g., avitriptan, LY-334370, naratriptan) VER-3323 VU6067416 YM-348

See also

References