2. Anti-infection
  3. Bacterial Antibiotic
  4. Dalfopristin

Dalfopristin is a semi-synthetic streptogramin antibiotic. Quinupristin/Dalfopristin (Q/D) is a valuable alternative antibiotic to vancomycin for the treatment of multi-agent resistant Enterococcus faecium infections.

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Dalfopristin 構造式

Dalfopristin 構造式

CAS 番号 : 112362-50-2

容量 価格（税別） 在庫状況 数量
1 mg USD 140 在庫あり
5 mg USD 290 在庫あり
10 mg USD 465 在庫あり
50 mg   お問い合わせ  
100 mg   お問い合わせ  

* アイテムを追加する前、数量をご選択ください

This product is a controlled substance and not for sale in your territory.

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Based on 2 publication(s) in Google Scholar

Dalfopristin 関連抗体

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Aminoglycoside Glycopeptide Lipopeptide Macrolide Oxazolidinone Quinolone Tetracycline β-lactam

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製品説明

Dalfopristin is a semi-synthetic streptogramin antibiotic. Quinupristin/Dalfopristin (Q/D) is a valuable alternative antibiotic to vancomycin for the treatment of multi-agent resistant Enterococcus faecium infections.

IC50 & Target

Antibacterial[1]
体外実験

Quinupristin/Dalfopristin(Q/D) is a combination of streptogramins B (Quinupristin) and streptogramins A (Dalfopristin) at 30:70 ratio[1]. Quinupristin/Dalfopristin, a semisynthetic injectable streptogramin, is a combination of 2 synergistic antibiotic components that are derived from pristinamycin: a type B streptogramin (Quinupristin) and a type A streptogramin (Dalfopristin), in a 30:70 weight-to-weight ratio[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Dalfopristin 関連抗体
分子量

690.85

分子式

C34H50N4O9S
CAS 番号
Appearance

Solid

Color

White to yellow

SMILES

O=S(CCN(CC)CC)([C@H]1[C@@](C(O[C@H]([C@@H](/C=C/C(NC/C=C\C(C)=C\2)=O)C)C(C)C)=O)([H])N(C(C3=COC(CC(C[C@@H]2O)=O)=N3)=O)CC1)=O
輸送条件

Room temperature in continental US; may vary elsewhere.
保管条件
Powder -20°C 3 years
In solvent -80°C 6 months
  -20°C 1 month
溶剤 & 溶解度
体外: 

DMSO : 125 mg/mL (180.94 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.4475 mL 7.2375 mL 14.4749 mL
5 mM 0.2895 mL 1.4475 mL 2.8950 mL
10 mM 0.1447 mL 0.7237 mL 1.4475 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

体内:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.08 mg/mL (3.01 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.08 mg/mL (3.01 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
純度とドキュメンテーション
参考文献

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 1.4475 mL 7.2375 mL 14.4749 mL 36.1873 mL
5 mM 0.2895 mL 1.4475 mL 2.8950 mL 7.2375 mL
10 mM 0.1447 mL 0.7237 mL 1.4475 mL 3.6187 mL
15 mM 0.0965 mL 0.4825 mL 0.9650 mL 2.4125 mL
20 mM 0.0724 mL 0.3619 mL 0.7237 mL 1.8094 mL
25 mM 0.0579 mL 0.2895 mL 0.5790 mL 1.4475 mL
30 mM 0.0482 mL 0.2412 mL 0.4825 mL 1.2062 mL
40 mM 0.0362 mL 0.1809 mL 0.3619 mL 0.9047 mL
50 mM 0.0289 mL 0.1447 mL 0.2895 mL 0.7237 mL
60 mM 0.0241 mL 0.1206 mL 0.2412 mL 0.6031 mL
80 mM 0.0181 mL 0.0905 mL 0.1809 mL 0.4523 mL
100 mM 0.0145 mL 0.0724 mL 0.1447 mL 0.3619 mL
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Dalfopristin Related Classifications

  • Molarity Calculator

  • Dilution Calculator

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: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Dalfopristin112362-50-2RP54476RP 54476RP-54476BacterialAntibioticInhibitorinhibitorinhibit

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製品名:
Dalfopristin
製品番号:
HY-A0241
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