L-Kynurenine

Also known as: (S)-2-Amino-4-(2-aminophenyl)-4-oxobutanoic acid, 3-Anthraniloyl-L-alanine, L-2-Amino-4-(2-aminophenyl)-4-oxobutanoic acid, beta-Anthraniloyl-L-alanine, Kynurenine, MFCD00069912, Tryptophan Impurity C, Tryptophan EP Impurity C

L-Kynurenine (CAS 2922-83-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H12N2O3 and a molecular weight of 208.214 g/mol. Key properties include a melting point of 302.49° C, a boiling point of 466.6±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 236.0±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2922-83-0
Jingsj CID: J-1001671-4
Molecular Formula: C₁₀H₁₂N₂O₃
Molecular Weight: 208.214 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	302.49° C
Boiling Point	466.6±45.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	236.0±28.7 °C
Exact Mass	208.084793
PSA	106.41000
LogP	1.09
Vapor Pressure	0.0±1.2 mmHg at 25°C
Refractive Index	1.626

Activity & Biological Data

Target	Human Endogenous Metabolite
Additional Information	[1]. Moyer BJ, et al. Inhibition of the aryl hydrocarbon receptor prevents Western diet-induced obesity. Model for AHR activation by kynurenine via oxidized-LDL, TLR2/4, TGFβ, and IDO1. Toxicol Appl Pharmacol. 2016 Jun 1;300:13-24. [2]. Sakakibara K, et al. Kynurenine causes vasodilation and hypotension induced by activation of KCNQ-encoded voltage-dependent K(+) channels. J Pharmacol Sci. 2015 Sep;129(1):31-7. [3]. Nozaki K, et al. Neuroprotective effects of L-kynurenine on hypoxia-ischemia and NMDA lesions in neonatal rats. J Cereb Blood Flow Metab. 1992 May;12(3):400-7.

Target

Human Endogenous Metabolite

Additional Information

[1]. Moyer BJ, et al. Inhibition of the aryl hydrocarbon receptor prevents Western diet-induced obesity. Model for AHR activation by kynurenine via oxidized-LDL, TLR2/4, TGFβ, and IDO1. Toxicol Appl Pharmacol. 2016 Jun 1;300:13-24. [2]. Sakakibara K, et al. Kynurenine causes vasodilation and hypotension induced by activation of KCNQ-encoded voltage-dependent K(+) channels. J Pharmacol Sci. 2015 Sep;129(1):31-7. [3]. Nozaki K, et al. Neuroprotective effects of L-kynurenine on hypoxia-ischemia and NMDA lesions in neonatal rats. J Cereb Blood Flow Metab. 1992 May;12(3):400-7.

Customs & Trade Information

HS Code	2922509090
Summary	2922509090. other amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of L-Kynurenine?

The CAS number of L-Kynurenine is 2922-83-0.

What are the molecular formula and molecular weight of L-Kynurenine?

L-Kynurenine has molecular formula C10H12N2O3 and molecular weight 208.214 g/mol.

What are the upstream and downstream products of L-Kynurenine?

For L-Kynurenine, Upstream Products: DL-Kynurenine, L-Tryptophan, 2-Iodoaniline; Downstream Products: Kynurenic acid, L-Alanine, 2-Amino-3,5-dibromobenzoic 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. "L-Kynurenine (CAS 2922-83-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1001671-4 (accessed 2026-11-09).

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