ZONISAMIDE

PRODUCT IDENTIFICATION

CAS NO.

68291-97-4

ZONISAMIDE 
EINECS NO.  
FORMULA C8H8N2O3S

MOL WT. 212.23

TOXICITY

 

H.S. CODE

2935.00.6000
SYNONYMS

Zonisamide; 3-(Sulfamoylmethyl)-1,2-benzisoxazole;

1,2-Benzisoxazole-3-methanesulfonamide; 3-(sulfamoylmethyl)-1,2-benzisoxazole; Excegran; Zonegran; Zonegran; Zonisamida; Zonisamidum;

SMILES

c12c(noc1cccc2)CS(N)(=O)=O

CLASSIFICATION

Anticonvulsant, Antioxidant, antiepileptic

EXTRA NOTES

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE white to off-white crystalline powder
MELTING POINT 160 ~ 163 C
BOILING POINT

 

SPECIFIC GRAVITY  
SOLUBILITY IN WATER

very slightly soluble

SOLVENT SOLUBILITY

Sparingly soluble in chloroform, n-hexane. Soluble in methanol, ethanol, ethyl acetate, and acetic acid.

pKa 10.2
VAPOR DENSITY

 

log P

 

OH RATE CONSTANT  

REFRACTIVE INDEX

 

NFPA RATINGS

Health hazard: 1, Flammability: 0, Physical hazards: 0

AUTOIGNITION

 

FLASH POINT

 

STABILITY Stable under normal conditions.

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking

Google Scholar Search

Drug Information Portal (U.S. National Library of Medicine) - Zonisamide

PubChem Compound Summary - Zonisamide

Drug Bank -  Zonisamide

KEGG (Kyoto Encyclopedia of Genes and Genomes) -  Zonisamide

http://www.ebi.ac.uk/ -  Zonisamide

http://www.ncbi.nlm.nih.gov/ -  Zonisamide

http://professionals.epilepsy.com/
Mechanisms of action of zonisamide: Zonisamide is chemically classified as a sulfonamide. It is not chemically related to any other seizure medicines. The primary mechanisms of action of zonisamide appear related to blockage of voltage-dependent sodium and T-type (but not L-type) calcium channels. Zonisamide is a less potent carbonic anhydrase inhibitor than acetazolamide and therefore this effect is probably not a major contributor to its mechanism of action. Zonisamide is a broad-spectrum anti-epileptic drug (AED) in animal models.

http://www.ema.europa.eu/
Mechanism of action: The mechanism of action of zonisamide is not known, but inhibition of seizure propagation appears to be related at least in part to its ability to both block voltage sensitive sodium and voltage sensitive, type calcium channels, thus reducing the spread of seizure discharges. This mixture of action is comparable to that of other anticonvulsant drugs, such as phenytoin. The role of GABA in zonisamide induced inhibition of seizures is not clear. There does not seem to be a direct effect of zonisamide on GABA mediated mechanism. Other studies suggest that part of its anticonvulsive effects may be by increasing the inhibitory effects of GABA by either affecting GABA binding to its receptor or increasing GABA release in the hippocampus. The effect of zonisamide on carbonic anhydrase activity does not play a significant role in the anticonvulsant activity of the drug. Zonisamide also appears to increase synaptic concentrations of monoamines.

N03AX:

Product

CAS RN.

Sultiame

61-56-3

Phenacemide

63-98-9

Lamotrigine

84057-84-1

Felbamate

25451-15-4

Topiramate

97240-79-4

Gabapentin

60142-96-3

Pheneturide

90-49-3

Levetiracetam

102767-28-2

Zonisamide

68291-97-4

Pregabalin

148553-50-8

Stiripentol

49763-96-4

Lacosamide

175481-36-4

Carisbamate

194085-75-1

Retigabine

150812-12-7

Perampanel

380917-97-5

Beclamide

501-68-8
SALES SPECIFICATION

APPEARANCE

white to off-white crystalline powder

ASSAY

98.0% min

LOSS ON DRYING

0.5% max

RESIDUE ON IGNITION

0.1% max

HEAVY METALS

20ppm max

MELTING POINT 160 ~ 163 C
TRANSPORTATION
PACKING
 
HAZARD CLASS  
UN NO.

 

SAFETY INFORMATION

HAZARD OVERVIEW

Harmful by ingestion.

GHS

 

SIGNAL WORD

Warning

PICTOGRAMS

HAZARD STATEMENTS

H302

P STATEMENTS

 

EC DIRECTIVES

 

HAZARD CODES

RISK PHRASES

 

SAFETY PHRASES

22

PRICE INFORMATION