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SML1354

Sigma-Aldrich

Tonabersat

≥98% (HPLC)

Synonym(s):

(3S-cis)-N-(6-Acetyl-3,4-dihydro-3-hydroxy-2,2-dimethyl-2H-1-benzopyran-4-yl)-3-chloro-4-fluoro-benzamide, N-[(3S,4S)-6-Acetyl-3,4-dihydro-3-hydroxy-2,2-dimethyl-2H-1-benzopyran-4-yl]-3-chloro-4-fluoro-benzamide, SB 220453, SB-220453

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About This Item

Empirical Formula (Hill Notation):
C20H19ClFNO4
CAS Number:
175013-84-0
Molecular Weight:
391.82
MDL number:
MFCD00944458
UNSPSC Code:
12352202
PubChem Substance ID:
329825809
NACRES:
NA.77

Quality Level

100

Assay

≥98% (HPLC)

form

powder

optical activity

[α]/D -100 to -110°, c = 1 in methanol

color

white to beige

solubility

DMSO: 20 mg/mL, clear

storage temp.

2-8°C

SMILES string

CC(C1=CC=C2C([C@H](NC(C3=CC=C(F)C(Cl)=C3)=O)[C@H](O)C(C)(C)O2)=C1)=O

InChI

1S/C20H19ClFNO4/c1-10(24)11-5-7-16-13(8-11)17(18(25)20(2,3)27-16)23-19(26)12-4-6-15(22)14(21)9-12/h4-9,17-18,25H,1-3H3,(H,23,26)/t17-,18-/m0/s1

InChI key

XLIIRNOPGJTBJD-ROUUACIJSA-N

Biochem/physiol Actions

Tonabersat (SB-220453) exhibits anticonvulsant property. It is a member of the family of novel benzoylamino-benzopyran compounds. Tonabersat is used as a therapeutic for trigeminal nerve-induced neurovascular reflexes. In addition, it acts as a putative migraine prophylactic agent containing an unique stereospecific binding site in the brain.
Tonabersat is a potent inhibitor of neuronal-glial gap junctions in trigeminal ganglion that inhibits cortical spreading depression (CSD) and neurogenic inflammation in animal models of migraine.

Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H315,H319,H400

Hazard Classifications

Aquatic Acute 1 - Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

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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Randomized, double-blind, placebo-controlled, proof-of-concept study of the cortical spreading depression inhibiting agent tonabersat in migraine prophylaxis.
Goadsby P J, et al.
Cephalalgia, 29(7), 742-750 (2009)
Tonabersat (SB?220453) a novel benzopyran with anticonvulsant properties attenuates trigeminal nerve?induced neurovascular reflexes.
Parsons A A, et al.
British Journal of Pharmacology, 132(7), 1549-1557 (2001)
Esther N Arwert et al.
Nature cell biology, 22(7), 758-766 (2020-06-03)
Cancer-associated fibroblasts (CAFs) perform diverse roles and can modulate therapy responses1. The inflammatory environment within tumours also influences responses to many therapies, including the efficacy of oncolytic viruses2; however, the role of CAFs in this context remains unclear. Furthermore, little

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