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Apramycin Sulfate (Nebramycin II)

This product is for research use only, not for human use. We do not sell to patients.

Apramycin Sulfate (Nebramycin II)
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Size Price Stock
500mg$150Check With Us
1g$250Check With Us
5g$625Check With Us

Cat #: V1973 CAS #: 65710-07-8 Purity ≥ 98%

Description: Apramycin (also known as Ai3-29795; Nebramycin II) is a broad spectrum and aminoglycoside class of antibiotic, which binds to the deep groove of the RNA. Apramycin consumption at farm level is most probably driving the increasing occurrence of apramycin/gentamicin cross-resistant [aac(3)-IV positive] E. coli in diseased pigs and healthy finishers at slaughter. Apramycin inhibits A. pleuropneumoniae FMV 87-682 with MIC50 of 8 mg/L. Apramycin (1/4 MIC) in the medium decreases the rate of growth of the bacterial strains tested, and causes the postantibiotic effect (PAE) up to 5 hours.

References: [1]. O'Connor S, et al. Apramycin, a unique aminocyclitol antibiotic. J Org Chem. 1976 Jun 11;41(12):2087-92.

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Molecular Weight (MW)637.66
Molecular FormulaC21H41N5O11.xH2O4S
CAS No.65710-07-8
Storage-20℃ for 3 years in powder formr
-80℃ for 2 years in solvent
Solubility In VitroDMSO: <1 mg/mLr
Water: 100 mg/mL (156.82 mM)r
Ethanol: <1 mg/mL
SMILES CodeO[C@H]1[C@@H](O[C@@H]2[C@@H](NC)[C@@H](O)[C@]3([H])[C@@](C[C@@H](N)[C@@H](O[C@H]4[C@H](O)[C@@H](O)[C@H](N)C[C@@H]4N)O3)([H])O2)O[C@H](CO)[C@@H](N)[C@@H]1O.O=S(O)(O)=O
SynonymsAi3-29795; Ai3 29795; Ai 3-29795; Apramycin sulphate; Nebramycin II
ProtocolIn VitroIn vitro activity: Apramycin consumption at farm level is most probably driving the increasing occurrence of apramycin/gentamicin cross-resistant [aac(3)-IV positive] E. coli in diseased pigs and healthy finishers at slaughter. Apramycin inhibits A. pleuropneumoniae FMV 87-682 with MIC50 of 8 mg/L. Apramycin (1/4 MIC) in the medium decreases the rate of growth of the bacterial strains tested, and causes the postantibiotic effect (PAE) up to 5 hours. Apramycin significantly reduces the haemolytic activity of A. pleuropneumoniae and affects the capsular material production of this isolate and of one isolate of P. multocida (type A). Apramycin induces translation errors, as assayed by incorporation of leucine, isoleucine and serine, although this effect occurs only to a limited extent, in cell-free systems from Escherichia coli programmed with poly(U). Apramycin inhibits the translocation step of protein synthesis both in vivo, in protoplasts of Bacillus megaterium, and in vitro, in cell-free systems from E. coli.
In VivoApramycin (225 mg/L) totally suppresses mortality and significantly reduces Salmonella excretion in comparison with non-treated chicks.
Animal modelChicks
Dosages225 mg/L
These protocols are for reference only. InvivoChem does not independently validate these methods.
Preparing Stock Solutions
Solvent volume to be added Mass (the weight of a compound)
Mother liquor concentration 1mg5mg10mg20mg
1mM1.5682 mL7.8412 mL15.6823 mL31.3647 mL
5mM0.3136 mL1.5682 mL3.1365 mL6.2729 mL
10mM0.1568 mL0.7841 mL1.5682 mL3.1365 mL
20mM0.0784 mL0.3921 mL0.7841 mL1.5682 mL
Quality Control Documentation
The molarity calculator equation
Mass(g) = Concentration(mol/L) × Volume(L) × Molecular Weight(g/mol)
Mass
=
Concentration
×
Volume
×
Molecular Weight*
The dilution calculator equation
Concentration(start) × Volume(start) = Concentration(final) × Volume(final)

This equation is commonly abbreviated as: C1 V1 = C2 V2

Concentration(start)
C1
×
Volume(start)
V1
=
Concentration(final)
C2
×
Volume(final)
V2
Step One: Enter information below
Dosage mg/kg Average weight of animals g Dosing volume per animal µL Number of animals
Step Two: Enter the in vivo formulation
%DMSO + % + %Tween 80 + %ddH2O

Calculation Results:
Working concentration: mg/ml;
Method for preparing DMSO master liquid: mg drug pre-dissolved in µL DMSO(Master liquid concentration mg/mL) ,Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation: Take µL DMSO master liquid, next add µL PEG300, mix and clarify, next add µL Tween 80,mix and clarify, next add µL ddH2O,mix and clarify.
Note:
  • (1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
  • (2) Be sure to add the solvent(s) in order.