C11H8N2
168.19 g/mol
Research ReagentWarning
9H-Pyrido[2,3-b]indole
CAS244-76-8EC205-960-6
Category
Research Reagent
Compound Class
Heterocycle
Primary Use
Research Compound
9H-Pyrido[2,3-b]indole is a research compound classified by the International Agency for Research on Cancer (IARC) as possibly carcinogenic to humans (Group 2B), based on limited evidence in humans and sufficient evidence in experimental animals. It is a tricyclic heterocyclic compound used primarily as a laboratory reagent.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
Safety Reference
Warning
H302Harmful if swallowed
H317May cause an allergic skin reaction
Customs Tariff Classification
The international HS code for 9H-Pyrido[2,3-b]indole (CAS 244-76-8) is 2933.99.
HS code (international, 6-digit)
2933.99
EU CN code (8-digit)
2933 99 80
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
9H-pyrido[2,3-b]indole
InChIKey
BPMFPOGUJAAYHL-UHFFFAOYSA-N
SMILES
C1=CC=C2C(=C1)C3=C(N2)N=CC=C3
Synonyms (11)
- 1,9-DIAZAFLUORENE
- 1-azacarbazole
- 1H-Pyrido[2,3-b]indole
- 3-Carboline
- 9H-1,9-Diazafluorene
- 9H-Pyrido[2,3-b]indole
- N-.ALPHA.-CARBOLINE
- a-Carboline
- alpha-Carboline
- azacarbazole
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