Harmaline

Also known as: 1-Methyl-7-methoxy-3,4-dihydro-β-carboline, 3,4-Dihydro-7-methoxy-1-methyl-9H-pyrido[3,4-b]indole, Dihydroharmine, Harmalol methyl ether, Harmidine, 7-Methoxy-1-methyl-3,4-dihydro-2H-pyrido[3,4-b]indole, O-Methylharmalol, Armalin, NSC 407285

Harmaline (CAS 304-21-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C13H14N2O and a molecular weight of 214.263 g/mol. Key properties include a melting point of 232-234 °C(lit.), a boiling point of 426.4±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 211.7±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 304-21-2
Jingsj CID: J-30344-6
Molecular Formula: C₁₃H₁₄N₂O
Molecular Weight: 214.263 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	232-234 °C(lit.)
Boiling Point	426.4±45.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	211.7±28.7 °C
Exact Mass	214.110611
PSA	37.38000
LogP	0.66
Vapor Pressure	0.0±1.0 mmHg at 25°C
Refractive Index	1.647

Activity & Biological Data

Target	Target: Monoamine oxidase[1]
Additional Information	[1]. Gey, K.F, et al. Effect of α-alkylated tryptamine derivatives on 5-hydroxytryptamine metabolism in vivo. Brit.J.Pharmacol. 19, 161-167(1962). [2]. Paterson NE, et al. Pharmacological characterization of harmaline-induced tremor activity in mice. Eur J Pharmacol. 2009 Aug 15;616(1-3):73-80.

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 Harmaline?

The CAS number of Harmaline is 304-21-2.

What are the molecular formula and molecular weight of Harmaline?

Harmaline has molecular formula C13H14N2O and molecular weight 214.263 g/mol.

What are the upstream and downstream products of Harmaline?

For Harmaline, Upstream Products: 6-Methoxytryptamine, Harmine, Carbon tetrachloride; Downstream Products: Harmol, Harmine, 4-Methoxy-3-nitrobenzoic acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Harmaline (CAS 304-21-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30344-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.