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72133 Sigma

Neomycin trisulfate salt hydrate

≥60% neomycin B basis

  • CAS Number 1405-10-3

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

  • Molecular Weight 908.88 (anhydrous basis)

  •  EC Number 215-773-1

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Properties

Related Categories Aminoglycosides, Antibacterial, Antibiotics, Antibiotics A to Z, Antibiotics N-S,
material   white to faint yellow
InChI Key   WHAGUNPVKDUVFV-QGTTWHFQSA-N
assay   ≥60% neomycin B basis
form   solid
mol wt   mol wt 908.88 g/mol
loss   ~5% loss on drying
solubility   H2O: soluble10 mg/mL, very faintly turbid, faintly yellow
Mode of action   protein synthesis | interferes
antibiotic activity spectrum   Gram-negative bacteria
  Gram-positive bacteria

Description

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.

Caution

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.

Preparation Note

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

Application

Neomycin Trisulfate is produced by Streptomyces containing a minimum of 85% neomycin B. It has been used as a selection agent for prokaryotic cells transformed using the neo selectable marker gene, 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 †††.. It is recommended for use in cell culture applications at 50 mg/L.

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Safety & Documentation

Safety Information

Symbol 
GHS08  GHS08
Signal word 
Danger
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
3
RTECS 
QP4375000

Documents

Certificate of Analysis

Protocols & Articles
Peer-Reviewed Papers
15

References

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