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Details

Stereochemistry UNKNOWN
Molecular Formula C13H14N2O2
Molecular Weight 230.2625
Optical Activity UNSPECIFIED
Defined Stereocenters 0 / 2
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of 1-METHYL-1,2,3,4-TETRAHYDRO-9H-.BETA.-CARBOLINE-3-CARBOXYLIC ACID

SMILES

CC1NC(CC2=C1NC3=C2C=CC=C3)C(O)=O

InChI

InChIKey=ZUPHXNBLQCSEIA-UHFFFAOYSA-N
InChI=1S/C13H14N2O2/c1-7-12-9(6-11(14-7)13(16)17)8-4-2-3-5-10(8)15-12/h2-5,7,11,14-15H,6H2,1H3,(H,16,17)

HIDE SMILES / InChI

Molecular Formula C13H14N2O2
Molecular Weight 230.2625
Charge 0
Count
Stereochemistry MIXED
Additional Stereochemistry No
Defined Stereocenters 0 / 2
E/Z Centers 0
Optical Activity UNSPECIFIED

(1R,3S)-1-methyl-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid (MTCA) is a β-carboline indole alkaloid naturally occurring in plants, foods, insects, and endogenously in mammals and humans. It exerts antioxidant and antithrombotic properties. MTCA is thought to be a possible causative substance of eosinophilia-myalgia syndrome associated with ingestion of L-tryptophan.

CNS Activity

Curator's Comment: 1-Methyl-tetrahydro-beta-carboline-3-carboxylic acid (MTCA) is brain penetrant in rats. No human data available.

Originator

Curator's Comment: reference retrieved from https://www.ncbi.nlm.nih.gov/pubmed/6574460

Approval Year

TargetsConditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown

Approved Use

Unknown
PubMed

PubMed

TitleDatePubMed
Chemical Constituents from the Flower of Hosta plantaginea with Cyclooxygenases Inhibition and Antioxidant Activities and Their Chemotaxonomic Significance.
2017-10-26
Manipulation of the Precursor Supply in Yeast Significantly Enhances the Accumulation of Prenylated β-Carbolines.
2017-06-16
Inhibition of platelet aggregation and thrombosis by indole alkaloids isolated from the edible insect Protaetia brevitarsis seulensis (Kolbe).
2017-06
The Methyltetrahydro-{beta}-Carbolines in Maca (Lepidium meyenii).
2009-09
Increased level of tetrahydro-beta-carboline derivatives in short-term fermented garlic.
2006-12
Investigation of the tuber constituents of maca (Lepidium meyenii Walp.).
2002-09-25
Tetrahydro-beta-carbolines, potential neuroactive alkaloids, in chocolate and cocoa.
2000-10
1-methyl-1,2,3,4-tetrahydro-beta-carboline-3-carboxylic acid and 1,2, 3,4-tetrahydro-beta-carboline-3-carboxylic acid in fruits.
1999-12
Accumulation of 1-methyl-tetrahydro-beta-carboline-3-carboxylic acid in blood and organs of rat. A possible causative substance of eosinophilia-myalgia syndrome associated with ingestion of L-tryptophan.
1993
Endogenous formation of 1-methyl-1,2,3,4-tetrahydro-beta-carboline-3- carboxylic acid in man as the possible causative substance of eosinophilia-myalgia syndrome associated with ingestion of L-tryptophan.
1991
Presence of 1-methyl-1,2,3,4-tetrahydro-beta-carboline-3-carboxylic acid, a precursor of a mutagenic nitroso compound, in soy sauce.
1983-05
Patents

Sample Use Guides

rats: single oral dose 1.6 mg/kg or 10 mg/kg, chronic treatment with a 10 mg/kg dose for 6 weeks. mice: 10-50 uM (iv)
Route of Administration: Oral
(1R,3S)-1-methyl-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid treatment resulted in a dose-dependent inhibition of TNF-a-induced secretion of PAI-1 from HUVECs, which was significant at 10-50lM
Substance Class Chemical
Created
by admin
on Wed Apr 02 11:21:45 GMT 2025
Edited
by admin
on Wed Apr 02 11:21:45 GMT 2025
Record UNII
667N6AT8F2
Record Status Validated (UNII)
Record Version
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Name Type Language
1-METHYL-1,2,3,4-TETRAHYDRO-9H-.BETA.-CARBOLINE-3-CARBOXYLIC ACID
Systematic Name English
N-ACETYLTRYPTOPHAN IMPURITY I [EP IMPURITY]
Preferred Name English
Code System Code Type Description
FDA UNII
667N6AT8F2
Created by admin on Wed Apr 02 11:21:45 GMT 2025 , Edited by admin on Wed Apr 02 11:21:45 GMT 2025
PRIMARY
PUBCHEM
73530
Created by admin on Wed Apr 02 11:21:45 GMT 2025 , Edited by admin on Wed Apr 02 11:21:45 GMT 2025
PRIMARY
Related Record Type Details
PARENT -> IMPURITY
CHROMATOGRAPHIC PURITY (HPLC/UV)
EP