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  • N1876 - Neomycin trisulfate salt hydrate

N1876 Sigma-Aldrich

Neomycin trisulfate salt hydrate


  • CAS Number 1405-10-3

  • Empirical Formula (Hill Notation) C23H46N6O13 · 3H2SO4 · xH2O

  • Molecular Weight 908.88 (anhydrous basis)

  •  EC Number 215-773-1

  •  PubChem Substance ID 57654443



Biochem/physiol Actions

Mode of action: This product acts by binding to the 30S and 50S subunits, causing miscoding and inhibiting initiation and elongation during protein synthesis. Neomycin also blocks voltage-sensitive Ca2+ channels without affecting the Na+/Ca2+ antiporter in neurons.

Antimicrobial spectrum: Neomycin acts against both gram-positive and gram-negative bacteria.


Stock solutions should be filter sterilized and stored at 2-8°C, and are stable at 37°C for 5 days. A 1 mg/mL neomycin solution in .1 M phosphate buffer, pH 8.0 should be used within 14 days when stored at 0-5°C. Solutions should be protected from light or moisture.


25, 100 g in glass bottle

Preparation Note

Neomycin sulfate is soluble in H2O at 50 mg/mL, yielding a clear solution.


Neomycin Trisulfate is produced by Streptomyces containing a minimum of 85% neomycin B. It has been used as a selection agent for prokaryotic cells that have been transformed using the selectable marker gene (neo), and to study ototoxic side effects of antibiotics, platelet-derived growth factor responses in certain fibroblasts, and extraction of Nuclear Phosphatidylinositol 4,5-Bisphosphate-Interacting Proteins..

General description

Chemical structure: aminoglycoside

Other Notes

Keep container tightly closed in a dry and well-ventilated place.Keep in a dry place

Safety & Documentation

Safety Information

GHS08  GHS08
Signal word 
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 

Milli-Q® Water Purification Solutions
Protocols & Articles


Aminoglycoside Analysis in Pork Muscle using Molecularly Imprinted Polymer Cleanup and LC/MS/MS Detection

Aminoglycosides are a well-known class of antibiotics that are routinely monitored in animal-derived foods. Many countries have instituted regulatory limits for aminoglycosides. There is growing conc...
Emily Barrey, Olga Shimelis, K. G. Espenschied
Reporter US, Volume 32.2
Keywords: Antibiotics, High performance liquid chromatography, Mass spectrometry, Separation, Size-exclusion chromatography, Solid phase extractions

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Antibiotics Selection Guide

The Antibiotic Selection Guide enables researchers to spend more time on their research discoveries and less time seeking established antibiotic information. Link to hundreds of antibiotics for conta...
Keywords: Antibiotics, Cell biology, Cell culture, Genetic, High performance liquid chromatography, Reversed-phase chromatography

Peer-Reviewed Papers


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