Norharmane
Also known as: 9H-Pyrido[3,4-b]indole, 2-Azacarbazole, 9H-β-Carboline, β-Carboline, Norharman, Carbazoline, Pyridoindole, 9H-Beta-carboline, 2,9-Diazafluorene
Norharmane (CAS 244-63-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H8N2 and a molecular weight of 168.195 g/mol. Key properties include a melting point of 219-221 ºC, a boiling point of 391.3±15.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 182.1±11.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 244-63-3
- Jingsj CID
- J-1013634-8
- Molecular Formula
- C11H8N2
- Molecular Weight
- 168.195 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 219-221 ºC |
|---|---|
| Boiling Point | 391.3±15.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 182.1±11.7 °C |
| Exact Mass | 168.068741 |
| PSA | 28.68000 |
| LogP | 2.80 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.785 |
Activity & Biological Data
| Target | MAO-A:3.34 μM (Ki) Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. Herraiz T, et al. Human monoamine oxidase enzyme inhibition by coffee and beta-carbolines norharman and harman isolated from coffee. Life Sci. 2006 Jan 18;78(8):795-802. [2]. Lee HW, et al. Potent Selective Inhibition of Monoamine Oxidase A by Alternariol Monomethyl Ether Isolated from Alternaria brassicae . J Microbiol Biotechnol. 2017 Feb 28;27(2):316-320. |
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Norharmane?
The CAS number of Norharmane is 244-63-3.
What are the molecular formula and molecular weight of Norharmane?
Norharmane has molecular formula C11H8N2 and molecular weight 168.195 g/mol.
What are the upstream and downstream products of Norharmane?
For Norharmane, Upstream Products: (3S)-2,3,4,9-Tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylic acid, 2,3,4,9-Tetrahydro-1H-pyrido[3,4-b]indole, 4,9-Dihydro-3H-pyrido[3,4-b]indole; Downstream Products: Harmane, 1-Amino-9H-pyrido[3,4-b]indole, 6-Chloro-9H-pyrido[3,4-b]indol-8-amine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Norharmane (CAS 244-63-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1013634-8 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.