1,2,3,4-Tetrachlorodibenzo-p-dioxin
1,2,3,4-四氯二苯并对二噁英
Also known as: 1,2,3,4-TCDD, 1,2,3,4-Tetrachlorodibenzo-para-dioxin, 1,2,3,4-Tetrachlorodibenzodioxin, Dibenzo-p-dioxin, 1,2,3,4-tetrachloro-, Dibenzo[b,e][1,4]dioxin, 1,2,3,4-tetrachloro-
1,2,3,4-Tetrachlorodibenzo-p-dioxin (CAS 30746-58-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H4Cl4O2 and a molecular weight of 321.971 g/mol. It is also known as 1,2,3,4-TCDD, 1,2,3,4-Tetrachlorodibenzo-para-dioxin and 1,2,3,4-Tetrachlorodibenzodioxin. Key properties include a boiling point of 413.3±45.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 161.9±28.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 30746-58-8
- Jingsj CID
- J-1315982-9
- Molecular Formula
- C12H4Cl4O2
- Chinese Name
- 1,2,3,4-四氯二苯并对二噁英
- Molecular Weight
- 321.971 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 413.3±45.0 °C at 760 mmHg |
|---|---|
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 161.9±28.8 °C |
Frequently Asked Questions
What is the CAS number of 1,2,3,4-Tetrachlorodibenzo-p-dioxin?
The CAS number of 1,2,3,4-Tetrachlorodibenzo-p-dioxin is 30746-58-8.
What are the molecular formula and molecular weight of 1,2,3,4-Tetrachlorodibenzo-p-dioxin?
1,2,3,4-Tetrachlorodibenzo-p-dioxin has molecular formula C12H4Cl4O2 and molecular weight 321.971 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,2,3,4-Tetrachlorodibenzo-p-dioxin (CAS 30746-58-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1315982-9 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.