Product Name

  • Name

    5-Methoxytryptamine hydrochloride

  • EINECS 200-637-6
  • CAS No. 66-83-1
  • Article Data3
  • CAS DataBase
  • Density 1.171 g/cm3
  • Solubility
  • Melting Point 246 °C
  • Formula C11H15ClN2O
  • Boiling Point 380 °C at 760 mmHg
  • Molecular Weight 226.706
  • Flash Point 183.6 °C
  • Transport Information
  • Appearance white to beige crystalline powder
  • Safety 36-26
  • Risk Codes 22-36/37/38-20/21/22
  • Molecular Structure Molecular Structure of 66-83-1 (5-Methoxytryptamine hydrochloride)
  • Hazard Symbols HarmfulXn
  • Synonyms 1H-Indole-3-ethanamine,5-methoxy-, monohydrochloride (9CI);Indole, 3-(2-aminoethyl)-5-methoxy-,monohydrochloride (8CI);5-Methoxytryptamine chloride;5-Methoxytryptaminemonohydrochloride;Mexamin;Mexamine;
  • PSA 51.04000
  • LogP 3.18000

Synthetic route

5-methoxytryptamine-2-carboxylic acid
52648-13-2

5-methoxytryptamine-2-carboxylic acid

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

Conditions
ConditionsYield
With hydrogenchloride for 2h; Heating;72%
hydrogenchloride
7647-01-0

hydrogenchloride

5-methoxy-N-acetyl-tryptamine
73-31-4

5-methoxy-N-acetyl-tryptamine

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

Conditions
ConditionsYield
Stage #1: 5-methoxy-N-acetyl-tryptamine With sodium dithionite; sodium hydroxide In 2-methyl-propan-1-ol at 100℃; for 2h; Inert atmosphere;
Stage #2: hydrogenchloride In 2-methyl-propan-1-ol; water Inert atmosphere;
25%
6-methoxy-2,3,4,9-tetrahydro-β-carbolin-1-one
17952-87-3

6-methoxy-2,3,4,9-tetrahydro-β-carbolin-1-one

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 100 percent / KOH / ethanol / 6 h / Heating
2: 72 percent / 10percent aq. HCl / 2 h / Heating
View Scheme
N-benzyl-3-pyrrolidinone
775-16-6

N-benzyl-3-pyrrolidinone

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

6-methoxy-2,3,4,9-tetrahydrospiro[β-carboline-1,3'-pyrrolidine]
853020-69-6, 853020-62-9, 853020-72-1

6-methoxy-2,3,4,9-tetrahydrospiro[β-carboline-1,3'-pyrrolidine]

Conditions
ConditionsYield
Stage #1: N-benzyl-3-pyrrolidinone; 5-methoxytryptamine hydrochloride With acetic acid at 100℃; for 1h;
Stage #2: With hydrogen; palladium 10% on activated carbon In ethanol for 72h;
Stage #3: With sodium carbonate In water Product distribution / selectivity;
99%
formaldehyd
50-00-0

formaldehyd

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

N,N-dimethyl-5-methoxytryptamine
1019-45-0

N,N-dimethyl-5-methoxytryptamine

Conditions
ConditionsYield
With sodium cyanoborohydride; acetic acid In methanol at 0 - 25℃; for 2h;95%
With sodium cyanoborohydride
(fluorenylmethoxy)carbonyl chloride
28920-43-6

(fluorenylmethoxy)carbonyl chloride

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

(9H-fluoren-9-yl)methyl 2-(5-methoxy-1H-indol-3-yl)ethylcarbamate
1394825-61-6

(9H-fluoren-9-yl)methyl 2-(5-methoxy-1H-indol-3-yl)ethylcarbamate

Conditions
ConditionsYield
With sodium hydrogencarbonate In ethyl acetate at 25℃; for 2h; Cooling;95%
5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

benzoyl chloride
98-88-4

benzoyl chloride

INS 48836
76290-79-4

INS 48836

Conditions
ConditionsYield
With potassium carbonate In dichloromethane; water at 20℃; for 2h;93%
N-benzyl-3-pyrrolidinone
775-16-6

N-benzyl-3-pyrrolidinone

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

1'-benzyl-6-methoxy-2,3,4,9-tetrahydrospiro[β-carboline-1,3'-pyrrolidine]
853020-88-9, 853020-89-0, 853020-91-4

1'-benzyl-6-methoxy-2,3,4,9-tetrahydrospiro[β-carboline-1,3'-pyrrolidine]

Conditions
ConditionsYield
Stage #1: N-benzyl-3-pyrrolidinone; 5-methoxytryptamine hydrochloride With acetic acid at 100℃; for 1h;
Stage #2: With ammonia In methanol; chloroform; water
90.1%
5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

acetic anhydride
108-24-7

acetic anhydride

5-methoxy-N-acetyl-tryptamine
73-31-4

5-methoxy-N-acetyl-tryptamine

Conditions
ConditionsYield
With triethylamine In dichloromethane at 0 - 25℃; for 3h;90%
5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

benzaldehyde
100-52-7

benzaldehyde

C18H18N2O*HCl

C18H18N2O*HCl

Conditions
ConditionsYield
for 0.05h; Pictet-Spengler cyclization; microwave irradiation;87%
5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

methyl chloroformate
79-22-1

methyl chloroformate

methyl N-[2-(5-methoxy-1H-indol-3-yl)ethyl]carbamate
67199-10-4

methyl N-[2-(5-methoxy-1H-indol-3-yl)ethyl]carbamate

Conditions
ConditionsYield
With triethylamine In dichloromethane at 0℃; for 3h; Inert atmosphere;87%
5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

C31H31N3O9S
308359-33-3

C31H31N3O9S

C42H43N5O9S
497871-10-0

C42H43N5O9S

Conditions
ConditionsYield
With sodium acetate In ethanol at 60℃; for 5h; Inert atmosphere;87%
5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

Cyclobutanecarbonyl chloride
5006-22-4

Cyclobutanecarbonyl chloride

N-[2-(5-methoxyindol-3-yl)ethyl]-cyclobutylcarboxamide
147621-55-4

N-[2-(5-methoxyindol-3-yl)ethyl]-cyclobutylcarboxamide

Conditions
ConditionsYield
With potassium carbonate In chloroform; water for 0.5h; Ambient temperature;86%
Propyl isocyanate
110-78-1

Propyl isocyanate

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

S 20932

S 20932

Conditions
ConditionsYield
In diethyl ether for 0.5h; Ambient temperature;85%
1,10-phenanthroline-5,6-dione
27318-90-7

1,10-phenanthroline-5,6-dione

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

N,N'-(1,10-phenanthroline-5,6-diylidene)bis(2-(5-methoxy-1H-indol-3-yl)ethanamine)
1446204-34-7

N,N'-(1,10-phenanthroline-5,6-diylidene)bis(2-(5-methoxy-1H-indol-3-yl)ethanamine)

Conditions
ConditionsYield
In ethanol for 4h; Reflux;85%
1H-indol-2-ylcarboxaldehyde
19005-93-7

1H-indol-2-ylcarboxaldehyde

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

1-indol-2-yl-6-methoxy-1,2,3,4-tetrahydro-β-carboline
136558-05-9

1-indol-2-yl-6-methoxy-1,2,3,4-tetrahydro-β-carboline

Conditions
ConditionsYield
In butan-1-ol for 2h; Heating;84%
5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

cyclopropanecarboxylic acid chloride
4023-34-1

cyclopropanecarboxylic acid chloride

S 20760
139564-01-5

S 20760

Conditions
ConditionsYield
With potassium carbonate In chloroform; water for 0.5h; Ambient temperature;80%
5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

acetaldehyde
75-07-0

acetaldehyde

6-methoxy-1-methyl-1,2,3,4-tetrahydro-β-carboline
1210-56-6

6-methoxy-1-methyl-1,2,3,4-tetrahydro-β-carboline

Conditions
ConditionsYield
In water for 24h; Ambient temperature; pH=4.1 (phosphate buffer);79%
With hydrogenchloride In ethanol; water at 20℃; for 48h;19%
With acetate buffer for 48h; Ambient temperature; Yield given;
tert-butoxycarbonyl-5-methoxyindole-3-acetaldehyde
1616670-75-7

tert-butoxycarbonyl-5-methoxyindole-3-acetaldehyde

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

1-(5-methoxy-1H-indol-3-yl)methyl-6-methoxy-1,2,3,4-tetrahydro-β-carboline

1-(5-methoxy-1H-indol-3-yl)methyl-6-methoxy-1,2,3,4-tetrahydro-β-carboline

Conditions
ConditionsYield
With acetic acid In water for 5h; Pictet-Spengler Synthesis; Reflux; Inert atmosphere;77%
6-ethoxy-2-methyl-quinoline
6628-28-0

6-ethoxy-2-methyl-quinoline

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

C23H19N3O2

C23H19N3O2

Conditions
ConditionsYield
With iodine In dimethyl sulfoxide at 130℃; Sealed tube; Green chemistry;75%
ethyl 4-(2-dimethylaminovinyl)-2-(piperidin-1-yl)pyrimidine-5-carboxylate

ethyl 4-(2-dimethylaminovinyl)-2-(piperidin-1-yl)pyrimidine-5-carboxylate

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

10-methoxy-2-(piperidin-1-yl)-8,13,13b,14-tetrahydroindolo[2,3-a]pyrimido[5,4-g]quinolizin-5(7H)-one
1030447-76-7

10-methoxy-2-(piperidin-1-yl)-8,13,13b,14-tetrahydroindolo[2,3-a]pyrimido[5,4-g]quinolizin-5(7H)-one

Conditions
ConditionsYield
In N,N-dimethyl-formamide for 5h; Reflux;74%
butanoic acid anhydride
106-31-0

butanoic acid anhydride

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

N-Butyryl-5-methoxytryptamine
66012-83-7

N-Butyryl-5-methoxytryptamine

Conditions
ConditionsYield
With sodium acetate In water; ethyl acetate for 3h;73%
5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

3-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester
101385-93-7

3-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester

tert-butyl 6-methoxy-2,3,4,9-tetrahydro-1'H-spiro[β-carboline-1,3'-pyrrolidine]-1'-carboxylate
853020-73-2

tert-butyl 6-methoxy-2,3,4,9-tetrahydro-1'H-spiro[β-carboline-1,3'-pyrrolidine]-1'-carboxylate

Conditions
ConditionsYield
Stage #1: 5-methoxytryptamine hydrochloride; 3-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester With acetic acid at 75℃; for 5h;
Stage #2: With ammonia In methanol; chloroform
73%
5-methoxyindole-3-carboxaldehyde
10601-19-1

5-methoxyindole-3-carboxaldehyde

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

1-(5-methoxy-1H-indol-3-yl)-6-methoxy-1,2,3,4-tetrahydro-β-carboline
1616670-83-7

1-(5-methoxy-1H-indol-3-yl)-6-methoxy-1,2,3,4-tetrahydro-β-carboline

Conditions
ConditionsYield
Stage #1: 5-methoxyindole-3-carboxaldehyde; 5-methoxytryptamine hydrochloride In methanol for 24h; Pictet-Spengler Synthesis; Inert atmosphere; Reflux;
Stage #2: With trifluoroacetic acid In dichloromethane at 20℃; for 19h; Pictet-Spengler Synthesis; Inert atmosphere;
73%
2-oxo-2H-pyran-6-carboxylic acid
672-67-3

2-oxo-2H-pyran-6-carboxylic acid

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

N-[2-(5-methoxy-indol-3-yI)-ethyl]-2-pyrone-6-carboxamide

N-[2-(5-methoxy-indol-3-yI)-ethyl]-2-pyrone-6-carboxamide

Conditions
ConditionsYield
Stage #1: 5-methoxytryptamine hydrochloride With pyridine In 1,2-dimethoxyethane at 20℃; for 0.5h;
Stage #2: 2H-pyran-2-one-6-carboxylic acid With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In 1,2-dimethoxyethane at 0 - 20℃; for 3.25h;
72%
2,6-dimethylquinoline
877-43-0

2,6-dimethylquinoline

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

C22H17N3O

C22H17N3O

Conditions
ConditionsYield
With iodine In dimethyl sulfoxide at 130℃; Sealed tube; Green chemistry;71%
furan-2-yl-oxo-acetic acid methyl ester
33245-13-5

furan-2-yl-oxo-acetic acid methyl ester

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

1-furan-2-yl-6-methoxy-2,3,4,9-tetrahydro-1H-β-carboline-1-carboxylic acid methyl ester
600121-86-6

1-furan-2-yl-6-methoxy-2,3,4,9-tetrahydro-1H-β-carboline-1-carboxylic acid methyl ester

Conditions
ConditionsYield
In methanol at 60℃;70%
6-chloro-2-methylquinoline
92-46-6

6-chloro-2-methylquinoline

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

C21H14ClN3O

C21H14ClN3O

Conditions
ConditionsYield
With iodine In dimethyl sulfoxide at 130℃; Sealed tube; Green chemistry;69%
ethyl 4-(2-dimethylaminovinyl)-2-morpholinopyrimidine-5-carboxylate

ethyl 4-(2-dimethylaminovinyl)-2-morpholinopyrimidine-5-carboxylate

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

10-methoxy-2-(morpholin-4-yl)-8,13,13b,14-tetrahydroindolo[2,3-a]pyrimido[5,4-g]quinolizin-5(7H)-one
1030485-87-0

10-methoxy-2-(morpholin-4-yl)-8,13,13b,14-tetrahydroindolo[2,3-a]pyrimido[5,4-g]quinolizin-5(7H)-one

Conditions
ConditionsYield
In N,N-dimethyl-formamide for 5h; Reflux;68%
5’-azido-8-carboxymethylthio-5'-deoxy-2’,3’-O-isopropylideneadenosine
1383468-08-3

5’-azido-8-carboxymethylthio-5'-deoxy-2’,3’-O-isopropylideneadenosine

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

C26H30N10O5S

C26H30N10O5S

Conditions
ConditionsYield
With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; Inert atmosphere;68%
6-Bromo-2-methyl-quinoline
877-42-9

6-Bromo-2-methyl-quinoline

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

C21H14BrN3O

C21H14BrN3O

Conditions
ConditionsYield
With iodine In dimethyl sulfoxide at 130℃; Sealed tube; Green chemistry;68%
5-bromovaleric acid methyl ester
5454-83-1

5-bromovaleric acid methyl ester

5-methoxytryptamine hydrochloride
66-83-1

5-methoxytryptamine hydrochloride

1-<2-(5-Methoxy-3-indolyl)-ethyl>-piperidon-2
62977-69-9

1-<2-(5-Methoxy-3-indolyl)-ethyl>-piperidon-2

Conditions
ConditionsYield
With potassium carbonate; potassium iodide In ethanol for 16h; Reflux;66%

5-Methoxytryptamine hydrochloride Chemical Properties

Molecular structure of 5-Methoxytryptamine hydrochloride (CAS NO.66-83-1) is:

Product Name: 5-Methoxytryptamine hydrochloride
CAS Registry Number: 66-83-1
IUPAC Name: 2-(5-methoxy-1H-indol-3-yl)ethanamine hydrochloride 
Molecular Weight: 226.7026 [g/mol]
Molecular Formula: C11H15ClN2O
H-Bond Donor: 3
H-Bond Acceptor: 2
EINECS: 210-153-7
Sensitive: Hygroscopic
Melting Point: 246 °C
Surface Tension: 50.5 dyne/cm
Density: 1.171 g/cm3
Flash Point: 183.6 °C
Enthalpy of Vaporization: 62.81 kJ/mol
Boiling Point: 380 °C at 760 mmHg
Vapour Pressure: 5.61E-06 mmHg at 25°C
Product Categories: Tryptamines;Aminomethyl's;Pyrroles & Indoles;Various Metabolites and Impurities;Intermediates & Fine Chemicals;Metabolites & Impurities;Pharmaceuticals;Pyrroles & Indoles

5-Methoxytryptamine hydrochloride Uses

 5-Methoxytryptamine hydrochloride (CAS NO.66-83-1) is used for a metabolite of melatonin.

5-Methoxytryptamine hydrochloride Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
cat LDLo intravenous 2500ug/kg (2.5mg/kg) CARDIAC: OTHER CHANGES
LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES
Farmakologiya i Toksikologiya Vol. 26, Pg. 10, 1963.
mouse LD50 intraperitoneal 227mg/kg (227mg/kg)   Yakugaku Zasshi. Journal of Pharmacy. Vol. 94, Pg. 1620, 1974.
mouse LD50 intravenous 103mg/kg (103mg/kg) BEHAVIORAL: TREMOR
BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Federation Proceedings, Federation of American Societies for Experimental Biology. Vol. 23, Pg. T125, 1964.
mouse LD50 oral 580mg/kg (580mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)
BEHAVIORAL: ATAXIA
GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"
Federation Proceedings, Federation of American Societies for Experimental Biology. Vol. 23, Pg. T125, 1964.
mouse LD50 subcutaneous 620mg/kg (620mg/kg)   Russian Pharmacology and Toxicology Vol. 35, Pg. 2, 1972.
rabbit LDLo intravenous 75mg/kg (75mg/kg) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES Farmakologiya i Toksikologiya Vol. 26, Pg. 10, 1963.
rat LDLo intravenous 6mg/kg (6mg/kg)   Russian Pharmacology and Toxicology Vol. 33, Pg. 246, 1970.

5-Methoxytryptamine hydrochloride Safety Profile

Hazard Codes: HarmfulXn
Risk Statements: 22-36/37/38-20/21/22 
R22:Harmful if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
Safety Statements: 36-26 
S36:Wear suitable protective clothing. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany: 3
RTECS: NL4059000
F: 10
HazardClass: IRRITANT

5-Methoxytryptamine hydrochloride Specification

 5-Methoxytryptamine hydrochloride (CAS NO.66-83-1) also can be called 3-(2-Aminoethyl)-5-methoxyindole hydrochloride ; Mexamine HCl ; Indole, 3-(2-aminoethyl)-5-methoxy-, hydrochloride ; and; 5-Methoxy-1H-indole-3-ethylamine monohydrochloride .It is a white to beige crystalline powder.

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