2. Neuronal Signaling Apoptosis
  3. Monoamine Oxidase Apoptosis
  4. Isatin

Isatin  (Synonyms: Indoline-2,3-dione)

Cat. No.: HY-Y0265 Purity: 99.89%
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Isatin (Indoline-2,3-dione) is a potent inhibitor of monoamine oxidase (MAO) with an IC50 of 3 μM. Also binds to central benzodiazepine receptors (IC50 against clonazepam, 123 μM). Also acts as an antagonist of both atrial natriuretic peptide stimulated and nitric oxide-stimulated guanylate cyclase activity. Shows effect on the serotonergic system.

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

Isatin Chemical Structure

Isatin Chemical Structure

CAS No. : 91-56-5

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

Isatin Related Antibodies

Top Publications Citing Use of Products

View All Monoamine Oxidase Isoform Specific Products:

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MAO-A MAO-B

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

Isatin (Indoline-2,3-dione) is a potent inhibitor of monoamine oxidase (MAO) with an IC50 of 3 μM. Also binds to central benzodiazepine receptors (IC50 against clonazepam, 123 μM)[1]. Also acts as an antagonist of both atrial natriuretic peptide stimulated and nitric oxide-stimulated guanylate cyclase activity[2]. Shows effect on the serotonergic system[3].

IC50 & Target

IC50: 3 μM (MAO B)[1]
In Vitro

In dopaminergic SH-SY5Y cells isatin (1-400 μM) induces cell death in dose- and time dependent manner. This death occurred as a continuum of survival, apoptosis and necrosis[2].

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

Isatin Related Antibodies
In Vivo

A single dose of isatin (80 mg/kg) has a rapid effect on the serotonergic system in the hypothalamus. Isatin significantly increases 5-HT concentrations in the hypothalamus and cortex but did not significantly alter 5-HIAA concentrations[3].

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

147.13

Formula

C8H5NO2
CAS No.
Appearance

Solid

Color

Orange to red

SMILES

O=C1NC2=C(C=CC=C2)C1=O
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 : 100 mg/mL (679.67 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : < 0.1 mg/mL (insoluble)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 6.7967 mL 33.9836 mL 67.9671 mL
5 mM 1.3593 mL 6.7967 mL 13.5934 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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  • 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    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.75 mg/mL (18.69 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.75 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (27.5 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: 99.89%

COA (252 KB) HNMR (129 KB) RP-HPLC (261 KB) LCMS (111 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. 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 6.7967 mL 33.9836 mL 67.9671 mL 169.9178 mL
5 mM 1.3593 mL 6.7967 mL 13.5934 mL 33.9836 mL
10 mM 0.6797 mL 3.3984 mL 6.7967 mL 16.9918 mL
15 mM 0.4531 mL 2.2656 mL 4.5311 mL 11.3279 mL
20 mM 0.3398 mL 1.6992 mL 3.3984 mL 8.4959 mL
25 mM 0.2719 mL 1.3593 mL 2.7187 mL 6.7967 mL
30 mM 0.2266 mL 1.1328 mL 2.2656 mL 5.6639 mL
40 mM 0.1699 mL 0.8496 mL 1.6992 mL 4.2479 mL
50 mM 0.1359 mL 0.6797 mL 1.3593 mL 3.3984 mL
60 mM 0.1133 mL 0.5664 mL 1.1328 mL 2.8320 mL
80 mM 0.0850 mL 0.4248 mL 0.8496 mL 2.1240 mL
100 mM 0.0680 mL 0.3398 mL 0.6797 mL 1.6992 mL
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Isatin 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:

Isatin91-56-5Indoline-2,3-dioneMonoamine OxidaseApoptosisMAOInhibitorinhibitorinhibit

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