Neomycin

新霉素

Also known as: Neomycin sulfate, Neomycin B, Framycetin, Myacyne, Neolate, Neomas, Neomin, Neosulf, Nivemycin, Biosol, Bycomycin, Bykomycin, Endomixin, Enterfram, Framygen, Fraquinol, Jernadex, Myacine, NEOMIX, Neobiosamine B

Neomycin (CAS 1404-04-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C23H52N6O25S3 and a molecular weight of 614.644 g/mol. It is also known as Neomycin sulfate, Neomycin B and Framycetin. Key properties include a boiling point of 927.1±65.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 514.5±34.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1404-04-2
Jingsj CID: J-14554-9
Molecular Formula: C₂₃H₅₂N₆O₂₅S₃
Chinese Name: 新霉素
Molecular Weight: 614.644 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	927.1±65.0 °C at 760 mmHg
Density	1.6±0.1 g/cm3
Flash Point	514.5±34.3 °C
Exact Mass	614.312256
PSA	602.05000
LogP	-3.65
Appearance	powder
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.675
Storage Conditions	2-8°C
Additional Property	H2O: 50 mg/mL As a stock solution. Stock solutions should be filter sterilized and stored at 2-8°C. Stable at 37°C for 5 days.

Activity & Biological Data

Additional Information	[1]. Liu Y, et al. Pharmacokinetics of neomycin sulfate after intravenous and oral administrations in swine. J Vet Pharmacol Ther. 2021 Sep;44(5):850-853.

Frequently Asked Questions

What is the CAS number of Neomycin?

The CAS number of Neomycin is 1404-04-2.

What are the molecular formula and molecular weight of Neomycin?

Neomycin has molecular formula C23H52N6O25S3 and molecular weight 614.644 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Neomycin (CAS 1404-04-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14554-9 (accessed 2026-10-28).

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