1,2,3,7,8-Pentachlorodibenzo-p-dioxin
Also known as: 1,2,3,7,8-Pentachlorodibenzo[b,e][1,4]dioxin, 1,2,3,7,8-P5CDD
1,2,3,7,8-Pentachlorodibenzo-p-dioxin (CAS 40321-76-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H3Cl5O2 and a molecular weight of 356.41600 g/mol. Key properties include a boiling point of 448.5ºC at 760mmHg, a density of 1.714g/cm3 and a flash point of 174ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 40321-76-4
- Jingsj CID
- J-1359074-4
- Molecular Formula
- C12H3Cl5O2
- Molecular Weight
- 356.41600 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 448.5ºC at 760mmHg |
|---|---|
| Density | 1.714g/cm3 |
| Flash Point | 174ºC |
| Exact Mass | 353.85800 |
| PSA | 18.46000 |
| LogP | 6.85160 |
| Refractive Index | 1.661 |
Customs & Trade Information
| HS Code | 2932999060 |
|---|---|
| Summary | 2932999060. Dioxin,Furan(polychorinated dibenzo-p-dioxines,polychlorinated dibenzofurans). VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:89(articles on the list of prohibited export goods,articles on the list of prohibited import goods). MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 1,2,3,7,8-Pentachlorodibenzo-p-dioxin?
The CAS number of 1,2,3,7,8-Pentachlorodibenzo-p-dioxin is 40321-76-4.
What are the molecular formula and molecular weight of 1,2,3,7,8-Pentachlorodibenzo-p-dioxin?
1,2,3,7,8-Pentachlorodibenzo-p-dioxin has molecular formula C12H3Cl5O2 and molecular weight 356.41600 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,2,3,7,8-Pentachlorodibenzo-p-dioxin (CAS 40321-76-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1359074-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.