1. Neuronal Signaling Apoptosis
  2. Cholinesterase (ChE) Apoptosis
  3. Scopoletin

Scopoletin  (Synonyms: Gelseminic acid; Chrysatropic acid)

Cat. No.: HY-N0342 Purity: 99.70%
COA Handling Instructions

Scopoletin is an inhibitor of acetylcholinesterase (AChE).

For research use only. We do not sell to patients.

Scopoletin Chemical Structure

Scopoletin Chemical Structure

CAS No. : 92-61-5

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Based on 2 publication(s) in Google Scholar

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  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Scopoletin is an inhibitor of acetylcholinesterase (AChE).

IC50 & Target

AChE

 

In Vitro

Scopoletin (SCT) is identified as a putative inhibitor of acetylcholinesterase (AChE). Scopoletin enhances the K+-stimulated release of ACh from rat frontal cortex synaptosomes, showing a bell-shaped dose effect curve (Emax: 4 μM) [1]. Scopoletin inhibits PC3 proliferation by inducing apoptosis of PC3 cells. The IC50 of Scopoletin for inhibiting PC3, PAA (human lung cancer cell), and Hela cell proliferation is (157±25), (154±51), and (294±100) mg/L, respectively. Scopoletin induces a marked time- and concentration-dependent inhibition of PC3 cell proliferation. Scopoletin reduces the protein content and decreases the acid phosphatase activity (ACP) level in PC3 cells in a concentration-dependent manner. Cells treated by Scopoletin show typical morphologic changes of apoptosis by light microscope, fluorescence microscope, and transmission electronmicroscope. Apoptosis rate is 0.3 %, 2.1 %, 9.3 % and 35 % for Scopoletin 0, 100, 200, and 400 mg/L, respectively, and cells in G2 phase decrease markedly after being treated with Scopoletin[2].

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

In Vivo

Scopoletin (2 μg, i.c.v.) increases T-maze alternation and ameliorated novel object recognition of mice with scopolamine-induced cholinergic deficit. It also reduces age-associated deficits in object memory of 15-18-month-old mice (2 mg/kg sc). Mice injected with 2 μg Scopoletin show an increased alternation rate of 71.3±2.5%[1].

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

Molecular Weight

192.17

Formula

C10H8O4

CAS No.
Appearance

Solid

Color

White to yellow

SMILES

O=C1C=CC2=CC(OC)=C(O)C=C2O1

Structure Classification
Initial Source
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 : 62.5 mg/mL (325.23 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

*Scopoletin is usually formulated as a suspension.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 5.2037 mL 26.0186 mL 52.0373 mL
5 mM 1.0407 mL 5.2037 mL 10.4075 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

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 (10.82 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 (10.82 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 2.08 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

    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.
Purity & Documentation

Purity: 99.70%

References
Cell Assay
[2]

PC3 cells (5×107/L) 1 mL in exponential growth are seeded into four 24-well plates. The plates are incubated at 37°C in a humidified 5% CO2 atmospbee. After 24h, Scopoletin 33, 66, 133, 266, and 533 mg/L are added to wells (3 wells for each concentration for each plate). For control cells (3 wells foreach plate),only DMEM was added. The plates are incubated continually. The viable cells are counted by hemocytometer every day in the frist 4 d by Trypan blue dye exclusion method[2].

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

Animal Administration
[1]

Mice[1]
C56BL/6N male, 4-6-month-old and 16-18-month-old mice are used in the behavioral studies. The mice are housed in groups of four in cages at constant humidity (50-55%) and temperature (22±1°C) on a 12:12 h light/dark cycle (7:00–19:00 h), with food and water ad libitum. Younger mice (4-6 months) are implanted with i.c.v. cannulas for application of Scopolamine (SCOP) and Scopoletin. The aged mice are injected with Scopoletin by the s.c. route. Experiments are conducted between 8:00 and 16:00 h. Mice with i.c.v. cannulas are randomly divided into four experimental groups: vehicle; SCOP 20 μg; Scopoletin 2 μg; and SCOP 20 μg plus Scopoletin 2 μg. The drugs are applied in 1 μL of vehicle solution (SCOP: saline, Scopoletin: 3 DMSO: 7 sterile water). I.c.v. injections are carried out 15 min before the start of the tests. Aged mice obtained Scopoletin s.c. 30 min prior to object memory test (vehicle: 1 DMSO: 1 EtOH, diluted with olive oil as required)[1].

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

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. 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 5.2037 mL 26.0186 mL 52.0373 mL 130.0931 mL
5 mM 1.0407 mL 5.2037 mL 10.4075 mL 26.0186 mL
10 mM 0.5204 mL 2.6019 mL 5.2037 mL 13.0093 mL
15 mM 0.3469 mL 1.7346 mL 3.4692 mL 8.6729 mL
20 mM 0.2602 mL 1.3009 mL 2.6019 mL 6.5047 mL
25 mM 0.2081 mL 1.0407 mL 2.0815 mL 5.2037 mL
30 mM 0.1735 mL 0.8673 mL 1.7346 mL 4.3364 mL
40 mM 0.1301 mL 0.6505 mL 1.3009 mL 3.2523 mL
50 mM 0.1041 mL 0.5204 mL 1.0407 mL 2.6019 mL
60 mM 0.0867 mL 0.4336 mL 0.8673 mL 2.1682 mL
80 mM 0.0650 mL 0.3252 mL 0.6505 mL 1.6262 mL
100 mM 0.0520 mL 0.2602 mL 0.5204 mL 1.3009 mL
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Scopoletin 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.

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