Catalog No. Size 价格库存数量
S0437-2 2mg solid ¥80
S0437-10 10mg solid ¥240


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.

Product information

CAS Number: 91-56-5

Molecular Weight: 147.13

Formula: C8H5NO2



Chemical Name: 2, 3-dihydro-1H-indole-2, 3-dione

Smiles: O=C1C2=CC=CC=C2NC1=O


InChi: InChI=1S/C8H5NO2/c10-7-5-3-1-2-4-6(5)9-8(7)11/h1-4H,(H,9,10,11)

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO : 110 mg/mL (747.64 mM; Need ultrasonic) H2O : < 0.1 mg/mL (insoluble)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥360 days if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

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.

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.


  1. Glover V, et al. Isatin: Identity with the Purified Endogenous Monoamine Oxidase Inhibitor Tribulin. Journal of Neurochemistry, 51(2), 656–659.
  2. Igosheva N, et al. Isatin, an endogenous monoamine oxidase inhibitor, triggers a dose- and time-dependent switch from apoptosis to necrosis in human neuroblastoma cells. Neurochem Int. 2005 Aug;47(3):216-24.
  3. McIntyre IM, et al. Serotonergic effects of isatin: an endogenous MAO inhibitor related to tribulin. J Neural Transm Gen Sect. 1990;79(1-2):35-40.

Products are for research use only. Not for human use.


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