Josamycin

交沙霉素

Also known as: Josamycin, Leucomycin A3, Iosalide, Josacine, Vilprafen, Wilprafen, Jomybel, Josamina, YL-704A3

Josamycin (CAS 16846-24-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C42H69NO15 and a molecular weight of 827.995 g/mol. It is also known as Leucomycin A3, Iosalide and Josacine. Key properties include a melting point of 131.5℃, a boiling point of 877.8±65.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 484.7±34.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
16846-24-5
Jingsj CID
J-46555-5
Molecular Formula
C42H69NO15
Chinese Name
交沙霉素
Molecular Weight
827.995 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point131.5℃
Boiling Point877.8±65.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point484.7±34.3 °C
Exact Mass827.466736
PSA206.05000
LogP3.88
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.535

Activity & Biological Data

TargetKd: 5.5 nM (ribosome)[1]
Additional Information[1]. Lovmar M, et al. Kinetics of macrolide action: the Josamycin and erythromycin cases. J Biol Chem. 2004 Dec 17;279(51):53506-15. [2]. Osono T, et al. Pharmacokinetics of macrolides, lincosamides and streptogramins. J Antimicrob Chemother. 1985 Jul;16 Suppl A:151-66.

Frequently Asked Questions

What is the CAS number of Josamycin?

The CAS number of Josamycin is 16846-24-5.

What are the molecular formula and molecular weight of Josamycin?

Josamycin has molecular formula C42H69NO15 and molecular weight 827.995 g/mol.

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

Last updated:

How to cite: Jingsj. "Josamycin (CAS 16846-24-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46555-5 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.