NEOMYCIN B Property

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

Hazard Codes 

Xn

Risk Statements 

42/43-63-36/37/38

Safety Statements 

26-36/37/39-45-36/37-23

WGK Germany 

2

F 

8

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H317May cause an allergic skin reaction

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P284Wear respiratory protection.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

P342+P311IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.

NEOMYCIN B Chemical Properties,Usage,Production

Uses

Neomycin C is an aminoglycoside antibiotic found in many topical medications. Neomycin has been used as a preventive measure for hepatic encephalopathy and hypercholesterolemia.

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