Zonisamide
Also known as: AD-810, CI-912, Excegran, Excemide, Zonegran, ZON, 1,2-Benzisoxazole-3-methanesulfonamide, 3-Sulfamoylmethyl-1,2-benzisoxazole, 1-(1,2-Benzoxazol-3-yl)methanesulfonamide, MFCD00865316
Zonisamide (CAS 68291-97-4) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C8H8N2O3S and a molecular weight of 212.226 g/mol. Key properties include a melting point of 275°C dec., a boiling point of 457.2±47.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 230.3±29.3 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 68291-97-4
- Jingsj CID
- J-19269-8
- Molecular Formula
- C8H8N2O3S
- Molecular Weight
- 212.226 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 275°C dec. |
|---|---|
| Boiling Point | 457.2±47.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 230.3±29.3 °C |
| Exact Mass | 212.025558 |
| PSA | 94.57000 |
| LogP | -0.10 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.656 |
| Additional Property | H2O: >5 mg/mL, soluble |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H301 — Toxic if swallowed
- H311 — Toxic in contact with skin
- H331 — Toxic if inhaled
- H370 — Causes damage to organs
Activity & Biological Data
| Additional Information | [1]. Peters DH, et al. Zonisamide. A review of its pharmacodynamic and pharmacokinetic properties, and therapeutic potential in epilepsy. Drugs. 1993 May;45(5):760-87. [2]. Brodie MJ, et al. Zonisamide as adjunctive therapy for refractory partial seizures. Epilepsy Res. 2006 Feb;68 Suppl 2:S11-6. Epub 2005 Nov 28. |
|---|
Customs & Trade Information
| HS Code | 2935009090 |
|---|---|
| Summary | 2935009090 other sulphonamides VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:35.0% |
Frequently Asked Questions
What is the CAS number of Zonisamide?
The CAS number of Zonisamide is 68291-97-4.
What are the molecular formula and molecular weight of Zonisamide?
Zonisamide has molecular formula C8H8N2O3S and molecular weight 212.226 g/mol.
Is Zonisamide hazardous?
Zonisamide has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H311 — Toxic in contact with skin.
What are the upstream and downstream products of Zonisamide?
For Zonisamide, Upstream Products: Benzo[d]isoxazol-3-ylmethanesulfonyl chloride, 1,2-Benzisoxazole-3-methanesulfonic acid sodium salt, 2-(1,2-Benzisoxazol-3-yl)acetic acid; Downstream Products: 1,2-Benzisoxazole-3-methanesulfonic acid sodium salt, Salicylic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Zonisamide (CAS 68291-97-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19269-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.