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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 5284476Generated: October 31, 2026

3-Amino-1-methyl-5H-pyrido(4,3-b)indole

3-AMINO-1-METHYL-PYRIDO(4,3-B)INDOLE · 2-Amino-4-methyl-3,9-diaza-9H-fluorene · 3-AMINO-1-METHYL-5-PYRIDO(4,3-B)INDOLE · 1-Methyl-3-aMino-5H-pyrido[4,3-b]indole · 5H-Pyrido[4,3-b]indol-3-amine, 1-methyl- · 3-AMINO-1-METHYL-5H-PYRIDO(4,3-BETA)INDOLE · 3-Amino-1-methyl-5H-pyrido[4,3-b]indole Discontinued. See A618001

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3-Amino-1-methyl-5H-pyrido(4,3-b)indole molecular structure

Identifiers & Physical Properties

CAS No.62450-07-1
Molecular formulaC12H11N3
Average molar mass197.24 g/mol
Monoisotopic mass197.09529736 g/mol
SMILESCc1nc(N)cc2[nH]c3ccccc3c12
InChIKeyLKKMLIBUAXYLOY-UHFFFAOYSA-N
PubChem CID5284476
ChEMBLCHEMBL365481
ChEBICHEBI:34328
DTXSIDDTXSID5043768

Chemical & Physical Properties

XLogP2
Topological polar surface area54.7
Hydrogen bond donors2
Hydrogen bond acceptors2
Rotatable bonds0
Heavy atoms15
Formal charge0
Complexity243
Melting point242 - 247 °C>300°C
Physical DescriptionSolid
Boiling point324.34°C (rough estimate)
Density1.1793 (rough estimate)
Refractive index1.6500 (estimate)
pKa (acidity coefficient)15.59±0.40(Predicted)
FDA UNII775UJ9HCTR
IARC2B (Vol. 31, Sup 7) 1987
EPA Substance Registry SystemTryptophan-P-2 (62450-07-1)
UN transport number2811
Hazard class6.1(b)
Packing groupIII

Safety & Regulations

Regulatory informationHazard Traits - Carcinogenicity
Carcinogen ClassificationTrp-P-2 (3-Amino-1-methyl-5H-pyrido[4,3-b]indole)Group 2B: Possibly carcinogenic to humansVolume 31: (1983) Some Food Additives, Feed Additives and Naturally Occurring Substances1987
RAIS Toxicity Values0.00091CALEPA3.2
UN transport number2811
Hazard class6.1(b)
Packing groupIII

Applications & Uses

Uses

Carcinogen