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Cefoselis Sulfate (FK-037)

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Cefoselis Sulfate (FK-037)
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250mg$600Check With Us
500mg$950Check With Us
1g$1425Check With Us

Cat #: V2035 CAS #: 122841-12-7 Purity ≥ 98%

Description: Cefoselis (also known as FK 037 Sulfate) is a widely used beta-lactam antibiotic of the cephalosporin class. Cefoselis inhibits GABA-induced currents in a concentration-dependent manner with IC50 of 185 mM. Cefoselis possesses a superior antistaphylococcal activity on MSSA isolates to both other compounds being however equal active to Cefepime and Cefpirome on multiresistant enterobacteriaceae. Cefoselis is dose-dependently appeared in brain extracellular fluid in proportion to its blood level. Cefoselis, a new parenteral cephalosporin, is active against clinical isolates of both gram-positive and gram-negative aerobic bacteria.

References: [1]. K Ohtaki, et al. Cefoselis, a beta-lactam antibiotic, easily penetrates the blood-brain barrier and causes seizure independently by glutamate release. J Neural Transm (Vienna). 2004 Dec;111(12):1523-35.

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Molecular Weight (MW)620.64
Molecular FormulaC19H22N8O6S2.H2SO4
CAS No.122841-12-7
Storage-20℃ for 3 years in powder formr
-80℃ for 2 years in solvent
Solubility In VitroDMSO: 3 mg/mL (4.8 mM)r
Water: 5 mg/mL (8.0 mM)r
Ethanol: <1 mg/mL
SMILES CodeO=C(C(N12)=C(CN3N(CCO)C(C=C3)=N)CS[C@]2([H])[C@H](NC(/C(C4=CSC(N)=N4)=N\OC)=O)C1=O)O.O=S(O)(O)=O
SynonymsFK 037 Sulfate; FK037; FK-037
ProtocolIn VitroIn vitro activity: Cefoselis inhibits GABA-induced currents in a concentration-dependent manner with IC50 of 185 mM. Cefoselis possesses a superior antistaphylococcal activity on MSSA isolates to both other compounds being however equal active to Cefepime and Cefpirome on multiresistant enterobacteriaceae. Cefoselis is dose-dependently appeared in brain extracellular fluid in proportion to its blood level. Cefoselis, a new parenteral cephalosporin, is active against clinical isolates of both gram-positive and gram-negative aerobic bacteria.
In VivoCefoselis elicits a massive elevation of extracellular glutamate concentration in normal rats. Cefoselis (50 mg/animal)-induced convulsions are prevented by pretreatment with 5-methyl-10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5,10-imine (MK-801), diazepam and phenobarbital (ED(50) values (mg/kg) of 0.78, 1.59 and 33.0, respectively), but not by carbamazepine or phenytoin.
Animal modelRats
Dosages50 mg/animal
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
1mM1.6112 mL8.0562 mL16.1124 mL32.2248 mL
5mM0.3222 mL1.6112 mL3.2225 mL6.4450 mL
10mM0.1611 mL0.8056 mL1.6112 mL3.2225 mL
20mM0.0806 mL0.4028 mL0.8056 mL1.6112 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.