NEOMYCIN B
Synonym(s):(2-Deoxy-4-O-(2,6-diamino-2,6-dideoxy-a-D-glucopyranosyl)-5-O-[3-O-(2,6-diamino-2,6-dideoxy-b-L-idopyranosyl)-b-D-ribofuranosyl]-D-streptamine sulfate);Antibiotic 10676;Neomycin B
- CAS NO.:119-04-0
- Empirical Formula: C23H46N6O13
- Molecular Weight: 614.64
- MDL number: MFCD09788228
- EINECS: 204-292-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-05-18 11:31:04
What is NEOMYCIN B?
The Uses of NEOMYCIN B
Neomycin C is an aminoglycoside antibiotic found in many topical medications. Neomycin has been used as a preventive measure for hepatic encephalopathy and hypercholesterolemia.
What are the applications of Application
Neomycin solution is a filtered reagent suitable for cell culture
Background
A component of neomycin that is produced by Streptomyces fradiae. On hydrolysis it yields neamine and neobiosamine B. (From Merck Index, 11th ed)
Indications
For the treatment of bacterial blepharitis, bacterial bonjunctivitis, corneal injuries, corneal ulcers and meibomianitis. For the prophylaxis of ocular infections following foreign body removal
Definition
ChEBI: A tetracyclic antibacterial agent derived from neomycin, being a glycoside ester of neamine and neobiosamine B.
General Description
Chemical structure: aminoglycoside
Biochem/physiol Actions
Neomycin is an aminoglycoside antibiotic, produced by Streptomyces containing a minimum of 85% neomycin B. It acts as a selection agent for prokaryotic cells transformed using the neo selectable marker gene. Neomycin trisulfate is used to study the cytototoxic side effects of antibiotics, platelet-derived growth factor responses in certain fibroblasts and extraction of nuclear phosphatidylinositol 4,5-bisphosphate-interacting proteins. This product is recommended for use in cell culture applications at 5 mL/L.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
Pharmacokinetics
Framycetin is used for the treatment of bacterial eye infections such as conjunctivitis. Framycetin is an antibiotic. It is not active against fungi, viruses and most kinds of anaerobic bacteria. Framycetin works by binding to the bacterial 30S ribosomal subunit, causing misreading of t-RNA, leaving the bacterium unable to synthesize proteins vital to its growth. Framycetin is useful primarily in infections involving aerobic bacteria bacteria.
Metabolism
Not Available
Properties of NEOMYCIN B
Melting point: | >194°C (dec.) |
Boiling point: | 658.4°C (rough estimate) |
Density | 1.3548 (rough estimate) |
refractive index | 1.6000 (estimate) |
storage temp. | 2-8°C |
solubility | Aqueous Acid (Slightly), Water (Slightly) |
form | liquid |
pka | 12.93±0.70(Predicted) |
color | clear |
Merck | 13,6482 |
Stability: | Hygroscopic |
Safety information for NEOMYCIN B
Signal word | Danger |
Pictogram(s) |
Health Hazard GHS08 |
GHS Hazard Statements |
H317:Sensitisation, Skin H334:Sensitisation, respiratory |
Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P284:Wear respiratory protection. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P333+P313:IF SKIN irritation or rash occurs: Get medical advice/attention. P342+P311:IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician. |
Computed Descriptors for NEOMYCIN B
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