2,7-Dichlorodibenzo-p-dioxin
Also known as: DCDD, 2,7-DCDD, NCI-C03667, caswellno302ab, 2,7-Dichlorooxanthrene, 2,7-Dichlorodibenzodioxin, 2,7-dichloro-dibenzo-p-dioxi, 2,7-dichlorodibenzo-4-dioxin, 2,7-Dichlorodibenzo-para-dioxin, 2,7-dichlorodibenzo[b,e][1,4]dioxin, 2,7-dichlorobenzo-p-dioxin, 2,7-dichlorobenzodioxin, Dibenzo-p-dioxin, 2,7-dichloro-, Dibenzo[b,e][1,4]dioxin, 2,7-dichloro-
2,7-Dichlorodibenzo-p-dioxin (CAS 33857-26-0) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H6Cl2O2 and a molecular weight of 253.081 g/mol. Key properties include a boiling point of 350.2±42.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 140.2±28.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 33857-26-0
- Jingsj CID
- J-1448049-0
- Molecular Formula
- C12H6Cl2O2
- Molecular Weight
- 253.081 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 350.2±42.0 °C at 760 mmHg |
|---|---|
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 140.2±28.0 °C |
| Exact Mass | 251.974487 |
| PSA | 18.46000 |
| LogP | 5.82 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.643 |
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 2,7-Dichlorodibenzo-p-dioxin?
The CAS number of 2,7-Dichlorodibenzo-p-dioxin is 33857-26-0.
What are the molecular formula and molecular weight of 2,7-Dichlorodibenzo-p-dioxin?
2,7-Dichlorodibenzo-p-dioxin has molecular formula C12H6Cl2O2 and molecular weight 253.081 g/mol.
What are the upstream and downstream products of 2,7-Dichlorodibenzo-p-dioxin?
For 2,7-Dichlorodibenzo-p-dioxin, Upstream Products: 4-Chlorophenol, Dibenzo-p-dioxin, 4-Chlorocatechol; Downstream Products: Dibenzo-p-dioxin, 2-Chlorodibenzo-p-dioxin.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,7-Dichlorodibenzo-p-dioxin (CAS 33857-26-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1448049-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.