1,4-Diiodo-2,5-dimethoxybenzene
Also known as: 2,5-Diiodo-1,4-dimethoxybenzene, 2,5-Dimethoxy-1,4-diiodobenzene, Benzene, 1,4-diiodo-2,5-dimethoxy-
1,4-Diiodo-2,5-dimethoxybenzene (CAS 51560-21-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H8I2O2 and a molecular weight of 389.957 g/mol. Key properties include a melting point of 171ºC, a boiling point of 382.9±42.0 °C at 760 mmHg, a density of 2.1±0.1 g/cm3 and a flash point of 185.4±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 51560-21-5
- Jingsj CID
- J-1437226-0
- Molecular Formula
- C8H8I2O2
- Molecular Weight
- 389.957 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 171ºC |
|---|---|
| Boiling Point | 382.9±42.0 °C at 760 mmHg |
| Density | 2.1±0.1 g/cm3 |
| Flash Point | 185.4±27.9 °C |
| Exact Mass | 389.861359 |
| PSA | 18.46000 |
| LogP | 3.78 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.640 |
Customs & Trade Information
| HS Code | 2909309090 |
|---|---|
| Summary | 2909309090 other aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 1,4-Diiodo-2,5-dimethoxybenzene?
The CAS number of 1,4-Diiodo-2,5-dimethoxybenzene is 51560-21-5.
What are the molecular formula and molecular weight of 1,4-Diiodo-2,5-dimethoxybenzene?
1,4-Diiodo-2,5-dimethoxybenzene has molecular formula C8H8I2O2 and molecular weight 389.957 g/mol.
What are the upstream and downstream products of 1,4-Diiodo-2,5-dimethoxybenzene?
For 1,4-Diiodo-2,5-dimethoxybenzene, Upstream Products: 2-Iodo-1,4-dimethoxybenzene, 1,4-Dimethoxybenzene, 2,5-Dimethoxyaniline; Downstream Products: 2,5-Dimethoxyterephthalaldehyde, 4-Iodo-2,5-dimethoxybenzaldehyde, 2,5-Diiodobenzene-1,4-diol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,4-Diiodo-2,5-dimethoxybenzene (CAS 51560-21-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1437226-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.