(S)-2,3,4,9-Tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylic Acid - ≥98% , CAS No.42438-90-4

CAS: 42438-90-4 Cat. No.: T170295 Molecular Weight: 216.24 EC Number: 868-990-4
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
H-Tpi-OH;L-1,2,3,4-Tetrahydro--carboline-3-carboxylic acid;L-Tryptoline-3-carboxylic acid;L-1,2,3,4-Tetrahydro-9H-pyrido[3,4-b]indole-3-carboxylic acid | (3S)-1H,2H,3H,4H,9H-pyrido[3,4-b]indole-3-carboxylic acid | Q27466042 | EN300-312396 | (S)-2,3,4,9-TE
Storage
Store at -20°C,Argon charged
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
T170295-250mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$9.90
1g
T170295-1g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$16.90
5g
T170295-5g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$55.90
25g
T170295-25g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$195.90
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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at -20°C,Argon charged Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
H-Tpi-OH;L-1, 2, 3, 4-Tetrahydro--carboline-3-carboxylic acid;L-Tryptoline-3-carboxylic acid;L-1, 2, 3, 4-Tetrahydro-9H-pyrido[3, 4-b]indole-3-carboxylic acid | (3S)-1H, 2H, 3H, 4H, 9H-pyrido[3, 4-b]indole-3-carboxylic acid | Q27466042 | EN300-312396 | (S)-2, 3, 4, 9-TE
Specifications & Purity
≥98%
Storage
Store at -20°C, Argon charged
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Action Type
AGONIST
Purity
≥98%
Names and Identifiers
Canonical SmilesC1C(NCC2=C1C3=CC=CC=C3N2)C(=O)O
IUPAC Name(3S)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylic acid
InChIKeyFSNCEEGOMTYXKY-JTQLQIEISA-N
INCHI1S/C12H12N2O2/c15-12(16)10-5-8-7-3-1-2-4-9(7)14-11(8)6-13-10/h1-4,10,13-14H,5-6H2,(H,15,16)/t10-/m0/s1
Isomeric SMILES C1[C@H](NCC2=C1C3=CC=CC=C3N2)C(=O)O
Molecular Weight 216.24

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
ClassIndoles and derivatives
SubclassPyridoindoles
Intermediate Tree Nodes Not available
Direct ParentBeta carbolines
Alternative Parents L-alpha-amino acids  3-alkylindoles  Aralkylamines  Benzenoids  Pyrroles  Heteroaromatic compounds  Amino acids  Monocarboxylic acids and derivatives  Dialkylamines  Carboxylic acids  Azacyclic compounds  Organopnictogen compounds  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Beta-carboline - Alpha-amino acid - Alpha-amino acid or derivatives - 3-alkylindole - L-alpha-amino acid - Indole - Aralkylamine - Benzenoid - Pyrrole - Heteroaromatic compound - Amino acid - Amino acid or derivatives - Azacycle - Secondary amine - Carboxylic acid derivative - Carboxylic acid - Monocarboxylic acid or derivatives - Secondary aliphatic amine - Hydrocarbon derivative - Organic oxide - Organonitrogen compound - Organooxygen compound - Carbonyl group - Organopnictogen compound - Organic nitrogen compound - Amine - Organic oxygen compound - Aromatic heteropolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as beta carbolines. These are compounds containing a 9H-pyrido[3,4-b]indole moiety.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
CYP19A1 Tclin Cytochrome P450 19A1 (6099 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SACC-LM (7 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Nos2 Nitric oxide synthase, inducible (3573 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Oryctolagus cuniculus (11301 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Rattus norvegicus (775804 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Nqo1 NAD(P)H dehydrogenase [quinone] 1 (1058 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

2 results found

Lot NumberCertificate TypeDateItem
F2617395Certificate of AnalysisJan 22, 2026 T170295
F2617396Certificate of AnalysisJan 22, 2026 T170295
Chemical and Physical Properties
SolubilityInsoluble in water
SensitivityAir sensitive;Heat sensitive
Melt Point(°C)282 °C
Molecular Weight216.240 g/mol
XLogP3-1.200
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count3
Rotatable Bond Count1
Exact Mass216.09 Da
Monoisotopic Mass216.09 Da
Topological Polar Surface Area65.099 Ų
Heavy Atom Count16
Formal Charge0
Complexity295.000
Isotope Atom Count0
Defined Atom Stereocenter Count1
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
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