Erythromycin lactobionate

Also known as: Erythromycin lactobionate (1:1) (salt), Erythromycin, lactobionate (salt), Erythromycin, compd. with lactobionic acid (1:1), Lactobionic acid, compd. with erythromycin (1:1), Erythrocin lactobionate, 4-O-β-D-Galactopyranosyl-D-gluconic acid compd. with erythromycin (1:1)

Erythromycin lactobionate (CAS 3847-29-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C49H89NO25 and a molecular weight of 1092.223 g/mol. Key properties include a melting point of 145-150°, a boiling point of 818.4ºC at 760mmHg, a density of 0.9083 (rough estimate) and a flash point of 448.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3847-29-8
Jingsj CID: J-1974696-4
Molecular Formula: C₄₉H₈₉NO₂₅
Molecular Weight: 1092.223 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	145-150°
Boiling Point	818.4ºC at 760mmHg
Density	0.9083 (rough estimate)
Flash Point	448.8ºC
Exact Mass	1091.572388
PSA	411.51000
Refractive Index	1.5300 (estimate)
Storage Conditions	20°C
Additional Property	Soluble in water, freely soluble in anhydrous ethanol and in methanol, very slightly soluble in acetone and in methylene chloride.

Activity & Biological Data

Target	Bacterial; RNA-dependent protein synthesis[1]
Additional Information	[1]. Gribble MJ, et al. Erythromycin. Med Clin North Am. 1982 Jan;66(1):79-89. [2]. Nakornchai S, et al. Activity of azithromycin or erythromycin in combination with antimalarial drugs against multidrug-resistant Plasmodium falciparum in vitro. Acta Trop. 2006 Dec;100(3):185-91. Epub 2006 Nov 28. [3]. Hamada K, et al. Antitumor effect of erythromycin in mice. Chemotherapy. 1995 Jan-Feb. 41(1):59-69. [4]. Katayama Y, et al. Neuroprotective effects of erythromycin on cerebral ischemia reperfusion-injury and cell viability after oxygen-glucose deprivation in cultured neuronal cells. Brain Res. 2014 Nov 7. 1588:159-67.

Target

Bacterial; RNA-dependent protein synthesis[1]

Additional Information

[1]. Gribble MJ, et al. Erythromycin. Med Clin North Am. 1982 Jan;66(1):79-89. [2]. Nakornchai S, et al. Activity of azithromycin or erythromycin in combination with antimalarial drugs against multidrug-resistant Plasmodium falciparum in vitro. Acta Trop. 2006 Dec;100(3):185-91. Epub 2006 Nov 28. [3]. Hamada K, et al. Antitumor effect of erythromycin in mice. Chemotherapy. 1995 Jan-Feb. 41(1):59-69. [4]. Katayama Y, et al. Neuroprotective effects of erythromycin on cerebral ischemia reperfusion-injury and cell viability after oxygen-glucose deprivation in cultured neuronal cells. Brain Res. 2014 Nov 7. 1588:159-67.

Frequently Asked Questions

What is the CAS number of Erythromycin lactobionate?

The CAS number of Erythromycin lactobionate is 3847-29-8.

What are the molecular formula and molecular weight of Erythromycin lactobionate?

Erythromycin lactobionate has molecular formula C49H89NO25 and molecular weight 1092.223 g/mol.

What are the upstream and downstream products of Erythromycin lactobionate?

For Erythromycin lactobionate, Upstream Products: Erythromycin, Lactobionic 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. "Erythromycin lactobionate (CAS 3847-29-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1974696-4 (accessed 2026-11-09).

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