2. Neuronal Signaling
  3. Cholinesterase (ChE)
  4. Physostigmine salicylate

Physostigmine salicylate  (Synonyms: Eserine salicylate)

Cat. No.: HY-B1266 Purity: 99.37%
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Physostigmine salicylate (Eserine salicylate) is a reversible acetylcholinesterase (AChE) inhibitor. Physostigmine salicylate crosses the blood-brain barrier and stimulates central cholinergic neurotransmission. Physostigmine salicylate can reverse memory deficits in transgenic mice with Alzheimer's disease. Physostigmine salicylate is also an antidote for anticholinergic poisoning.

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Physostigmine salicylate Chemical Structure

Physostigmine salicylate Chemical Structure

CAS No. : 57-64-7

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5 mg USD 140 In-stock
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Based on 1 publication(s) in Google Scholar

Other Forms of Physostigmine salicylate:

Physostigmine salicylate Related Antibodies

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1 Publications Citing Use of MCE Physostigmine salicylate

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Description

Physostigmine salicylate (Eserine salicylate) is a reversible acetylcholinesterase (AChE) inhibitor. Physostigmine salicylate crosses the blood-brain barrier and stimulates central cholinergic neurotransmission. Physostigmine salicylate can reverse memory deficits in transgenic mice with Alzheimer's disease. Physostigmine salicylate is also an antidote for anticholinergic poisoning[1][2][3][4].

IC50 & Target

AChE

 

In Vivo

Physostigmine salicylate (Eserine salicylate; 0.03-0.3 mg/kg; s.c.; daily for 6 weeks) improves deficits in contextual and cued memory in Tg(+) mice[2].
?

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

Animal Model: Heterozygous transgenic mice (Tg(+) mice)[2]
Dosage: 0.03, 0.1, and 0.3 mg/kg
Administration: SC; daily for 6 weeks
Result: Tended to normalize the contextual memory deficit in Tg(+) animals so that they became more similar to Tg(-) animals.
Clinical Trial
Molecular Weight

413.47

Formula

C22H27N3O5
CAS No.
Appearance

Solid

Color

White to yellow

SMILES

O=C(O)C1=CC=CC=C1O.O=C(OC2=CC3=C(N(C)[C@]4([H])[C@@]3(C)CCN4C)C=C2)NC
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, sealed storage, away from moisture and light

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (241.86 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : 33.33 mg/mL (80.61 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.4186 mL 12.0928 mL 24.1856 mL
5 mM 0.4837 mL 2.4186 mL 4.8371 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 (sealed storage, away from moisture and light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • Molarity Calculator

  • Dilution Calculator

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

Mass
=
Concentration
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Volume
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Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

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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: ≥ 2.08 mg/mL (5.03 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 (5.03 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.

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
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:  PBS

    Solubility: 5 mg/mL (12.09 mM); Clear solution; Need ultrasonic and warming and heat to 60°C

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.
Calculation results:
Working solution concentration: mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
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).
Purity & Documentation

Purity: 99.37%

SDS (480 KB)

COA (260 KB) HNMR (255 KB) LCMS (265 KB) OR (62 KB)

Handling Instructions (2659 KB)
References

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 (sealed storage, away from moisture and light). 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
H2O / DMSO 1 mM 2.4186 mL 12.0928 mL 24.1856 mL 60.4639 mL
5 mM 0.4837 mL 2.4186 mL 4.8371 mL 12.0928 mL
10 mM 0.2419 mL 1.2093 mL 2.4186 mL 6.0464 mL
15 mM 0.1612 mL 0.8062 mL 1.6124 mL 4.0309 mL
20 mM 0.1209 mL 0.6046 mL 1.2093 mL 3.0232 mL
25 mM 0.0967 mL 0.4837 mL 0.9674 mL 2.4186 mL
30 mM 0.0806 mL 0.4031 mL 0.8062 mL 2.0155 mL
40 mM 0.0605 mL 0.3023 mL 0.6046 mL 1.5116 mL
50 mM 0.0484 mL 0.2419 mL 0.4837 mL 1.2093 mL
60 mM 0.0403 mL 0.2015 mL 0.4031 mL 1.0077 mL
80 mM 0.0302 mL 0.1512 mL 0.3023 mL 0.7558 mL
DMSO 100 mM 0.0242 mL 0.1209 mL 0.2419 mL 0.6046 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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Physostigmine salicylate Related Classifications

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:

Physostigmine57-64-7EserineCholinesterase (ChE)blood-brainbarrierAlzheimer'santidoteInhibitorinhibitorinhibit

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