2. Piperacillin

Piperacillin  (Synonyms: Pipracil)

Cat. No.: HY-B1923 Purity: 98.37%
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Piperacillin is a semisynthetic broad-spectrum β-lactam antibiotic which exhibits potent bactericidal activity against Gram-negative bacteria as well as select Gram-positive strains through penicillin-binding proteins. Piperacillin is most commonly used in combination with the β-lactamase inhibitor Tazobactam.

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Piperacillin Chemical Structure

Piperacillin Chemical Structure

CAS No. : 61477-96-1

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10 mM * 1 mL in DMSO
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Based on 5 publication(s) in Google Scholar

Other Forms of Piperacillin:

Piperacillin Related Antibodies

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Description

Piperacillin is a semisynthetic broad-spectrum β-lactam antibiotic which exhibits potent bactericidal activity against Gram-negative bacteria as well as select Gram-positive strains through penicillin-binding proteins. Piperacillin is most commonly used in combination with the β-lactamase inhibitor Tazobactam[1][2][3].

In Vitro

Piperacillin (12.5 μg/mL, 24h) inhibits 92% of isolates of Pseudomonas aeruginosa, 82% of Serratia marcescens, 73% of Escherichia coli, 61% of Klebsiella spp, and 42% of Enterobacter spp, most Proteus spp. were extremely susceptible. Piperacillin fails to inhibit the growth of gram-negative bacilli when large inocula were used (minimum inhibitory concentration > 25 μg/ml) [2].

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

Piperacillin Related Antibodies
In Vivo

Piperacillin (100 mg/kg, i.v., 4 times a day, 5 d) in combination with Tazobactam (HY-B1418)(12.5 mg/kg, i.v., 4 times a day, 5 d) prolongs survival in mice with low inoculum of K. pneumoniae[3].

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

Animal Model: BALB/c low inoculum model of K. pneumoniae, KEN-11 strain [3]
Dosage: 100 mg/kg
Administration: Intravenous injection (i.v.), 4 times a day, 5 d, in combination with Tazobactam (12.5 mg/kg, i.v., 4 times a day, 5 d)
Result: Enabled all mice survived whereas all control mice died by 5 d, decreased the number of bacteria in lungs compared with control group[.
Observed no bacteria in the blood of most mice (except for two mice at the early phase) while bacteria were observed in the blood of control group.
Observed few inflammatory cells in the alveoli whereas an influx of numerous inflammatory cells were observed in the control group.
Clinical Trial
Molecular Weight

517.55

Formula

C23H27N5O7S
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C([C@@H](C(C)(C)S[C@]1([H])[C@@H]2NC([C@H](NC(N3C(C(N(CC)CC3)=O)=O)=O)C4=CC=CC=C4)=O)N1C2=O)O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (193.22 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 1.9322 mL 9.6609 mL 19.3218 mL
5 mM 0.3864 mL 1.9322 mL 3.8644 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.

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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

In Vivo:

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: ≥ 2.5 mg/mL (4.83 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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: ≥ 2.5 mg/mL (4.83 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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.
Purity & Documentation

Purity: 98.37%

COA (251 KB) HNMR (305 KB) LCMS (95 KB)

Handling Instructions (2659 KB)

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 1.9322 mL 9.6609 mL 19.3218 mL 48.3045 mL
5 mM 0.3864 mL 1.9322 mL 3.8644 mL 9.6609 mL
10 mM 0.1932 mL 0.9661 mL 1.9322 mL 4.8305 mL
15 mM 0.1288 mL 0.6441 mL 1.2881 mL 3.2203 mL
20 mM 0.0966 mL 0.4830 mL 0.9661 mL 2.4152 mL
25 mM 0.0773 mL 0.3864 mL 0.7729 mL 1.9322 mL
30 mM 0.0644 mL 0.3220 mL 0.6441 mL 1.6102 mL
40 mM 0.0483 mL 0.2415 mL 0.4830 mL 1.2076 mL
50 mM 0.0386 mL 0.1932 mL 0.3864 mL 0.9661 mL
60 mM 0.0322 mL 0.1610 mL 0.3220 mL 0.8051 mL
80 mM 0.0242 mL 0.1208 mL 0.2415 mL 0.6038 mL
100 mM 0.0193 mL 0.0966 mL 0.1932 mL 0.4830 mL
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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:

Piperacillin61477-96-1PipracilInhibitorinhibitorinhibit

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