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About This Item

Empirical Formula (Hill Notation):
C18H15N3O3S
CAS Number:
622387-85-3
Molecular Weight:
353.40
MDL number:
MFCD07776820
UNSPSC Code:
12352200
NACRES:
NA.77
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Quality Level

100

Assay

≥97% (sum of two isomers, HPLC)

form

solid

potency

14 nM IC50

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

deep orange

solubility

DMSO: 5 mg/mL

shipped in

ambient

storage temp.

2-8°C

SMILES string

[S](=O)(=O)(N)c1cc2c(cc1)NC(=O)C2=Cc3c4c([n](c3)C)cccc4

InChI

1S/C18H15N3O3S/c1-21-10-11(13-4-2-3-5-17(13)21)8-15-14-9-12(25(19,23)24)6-7-16(14)20-18(15)22/h2-10H,1H3,(H,20,22)(H2,19,23,24)

InChI key

MLKHXLFEYOOYEY-UHFFFAOYSA-N

General description

A cell-permeable oxindole compound that acts as a potent, reversible, and ATP-competitive Syk inhibitor (IC50 = 14 nM). Has been shown to effectively inhibit FcεRI-mediated degranulation in the rat basophilic leukemia cell line, RBL-2H3 (EC50 = 313 nM).
A cell-permeable, potent, reversible, and ATP-competitive Spleen Tyrosine Kinase (Syk) inhibitor (IC50 = 14 nM). Shown to effectively inhibit FcεRI-mediated degranulation in the rat basophilic leukemia cell line, RBL-2H3 (EC50 = 313 nM).

Biochem/physiol Actions

Cell permeable: yes
EC50 = 313 nM against FcεRI-mediated degranulation in the rat basophilic leukemia cell line, RBL-2H3
Product competes with ATP.
Reversible: yes

Packaging

Packaged under inert gas

Other Notes

Lai, J.Y.Q., et al. 2003. Bioorg. Med. Chem. Lett.13, 3111.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Toxicity: Standard Handling (A)

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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