MK-571 sodium salt

Also known as: MK-571, L-660711, MK-571 sodium salt, L-660711 sodium salt, UNII:76LB1G2X6V, CS-2183, Mk 0571, Mk 0679, MK-571 NA, 3-[({3-[(E)-2-(7-Chloro-2-quinolinyl)vinyl]phenyl}{[3-(dimethylamino)-3-oxopropyl]sulfanyl}methyl)sulfanyl]propanoic acid, 3-[[[3-[(E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl][[3-(dimethylamino)-3-oxopropyl]thio]methyl]thio]propanoic acid

MK-571 sodium salt (CAS 115104-28-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C26H27ClN2O3S2 and a molecular weight of 515.09 g/mol. Key properties include a boiling point of 712.3±60.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 384.6±32.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 115104-28-4
Jingsj CID: J-49753-0
Molecular Formula: C₂₆H₂₇ClN₂O₃S₂
Molecular Weight: 515.09 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	712.3±60.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	384.6±32.9 °C
Exact Mass	514.115173
PSA	121.10000
LogP	5.93
Vapor Pressure	0.0±2.4 mmHg at 25°C
Refractive Index	1.687
Storage Conditions	20°C

Activity & Biological Data

Target	LTD4:0.22 nM (Ki, In guinea pig lung) LTD4:2.1 nM (Ki, In human lung) LTD4:10.5 (pA2, on guinea pig ileum) LTE4:10.4 (pA2, on guinea pig ileum)
Additional Information	[1]. Jones TR, et al. Pharmacology of L-660,711 (MK-571): a novel potent and selective leukotriene D 4 receptor antagonist. Can J Physiol Pharmacol. 1989 Jan;67(1):17-28. [2]. Hara Y, et al. Inhibition of MRP4 prevents and reverses pulmonary hypertension in mice. J Clin Invest. 2011 Jul;121(7):2888-97. [3]. Mitra P, et al. Role of ABCC1 in export of sphingosine-1-phosphate from mast cells. Proc Natl Acad Sci U S A. 2006 Oct 31;103(44):16394-9.

Target

LTD4:0.22 nM (Ki, In guinea pig lung) LTD4:2.1 nM (Ki, In human lung) LTD4:10.5 (pA2, on guinea pig ileum) LTE4:10.4 (pA2, on guinea pig ileum)

Additional Information

[1]. Jones TR, et al. Pharmacology of L-660,711 (MK-571): a novel potent and selective leukotriene D 4 receptor antagonist. Can J Physiol Pharmacol. 1989 Jan;67(1):17-28. [2]. Hara Y, et al. Inhibition of MRP4 prevents and reverses pulmonary hypertension in mice. J Clin Invest. 2011 Jul;121(7):2888-97. [3]. Mitra P, et al. Role of ABCC1 in export of sphingosine-1-phosphate from mast cells. Proc Natl Acad Sci U S A. 2006 Oct 31;103(44):16394-9.

Frequently Asked Questions

What is the CAS number of MK-571 sodium salt?

The CAS number of MK-571 sodium salt is 115104-28-4.

What are the molecular formula and molecular weight of MK-571 sodium salt?

MK-571 sodium salt has molecular formula C26H27ClN2O3S2 and molecular weight 515.09 g/mol.

What are the upstream and downstream products of MK-571 sodium salt?

For MK-571 sodium salt, Upstream Products: 7-Chloro-2-methylquinoline, Isophthalaldehyde, 3-(Hydroxymethyl)benzaldehyde.

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. "MK-571 sodium salt (CAS 115104-28-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49753-0 (accessed 2026-11-09).

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