Oxadiazon
Also known as: 3-[2,4-dichloro-5-(1-methylethoxy)phenyl]-5-(1,1-dimethylethyl)-1,3,4-oxadiazol-2(3H)-one, 2-tert-Butyl-4-(2,4-dichloro-5-isopropoxyphenyl)-1,3,4-oxadiazolin-5-one, 5-tert-Butyl-3-(2,4-dichloro-5-isopropoxyphenyl)-1,3,4-oxadiazol-2(3H)-one, Oxydiazon, Ronstar, RP 17623, Foresite, UNII-C6U0E0YTP6
Oxadiazon (CAS 19666-30-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C15H18Cl2N2O3 and a molecular weight of 345.221 g/mol. Key properties include a melting point of 88-90°C, a boiling point of 417.0±55.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 206.0±31.5 °C. It is classified under GHS with signal word Warning and hazard statements H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 19666-30-9
- Jingsj CID
- J-29600-7
- Molecular Formula
- C15H18Cl2N2O3
- Molecular Weight
- 345.221 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 88-90°C |
|---|---|
| Boiling Point | 417.0±55.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 206.0±31.5 °C |
| Exact Mass | 344.069458 |
| PSA | 57.26000 |
| LogP | 4.55 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.569 |
GHS Safety & Compliance
- H410 — Very toxic to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2934999010 |
|---|---|
| Summary | 2934999010. VAT:17.0%. Tax rebate rate:9.0%. Supervision conditions:S(import or export registration certificate for pesticides). MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Oxadiazon?
The CAS number of Oxadiazon is 19666-30-9.
What are the molecular formula and molecular weight of Oxadiazon?
Oxadiazon has molecular formula C15H18Cl2N2O3 and molecular weight 345.221 g/mol.
Is Oxadiazon hazardous?
Oxadiazon has GHS signal word Warning and hazard statements H410 — Very toxic to aquatic life with long lasting effects.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Oxadiazon (CAS 19666-30-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29600-7 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.