1,4-Phenylenediphosphonic acid
1,4-苯二膦酸
Also known as: 1,4-Benzenediphosphonic acid, 1,4-Benzenebisphosphonic acid, (4-Phosphonophenyl)phosphonic acid, 1,4-Phenylenebis(phosphonic acid), Phenylene-1,4-diphosphonic acid, p-Phenylenediphosphonic acid, Phosphonic acid, P,P'-1,4-phenylenebis-
1,4-Phenylenediphosphonic acid (CAS 880-68-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H8O6P2 and a molecular weight of 238.072 g/mol. It is also known as 1,4-Benzenediphosphonic acid, 1,4-Benzenebisphosphonic acid and (4-Phosphonophenyl)phosphonic acid. Key properties include a melting point of 288 °C, a boiling point of 580.4±60.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 304.8±32.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 880-68-2
- Jingsj CID
- J-1492424-6
- Molecular Formula
- C6H8O6P2
- Chinese Name
- 1,4-苯二膦酸
- Molecular Weight
- 238.072 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 288 °C |
|---|---|
| Boiling Point | 580.4±60.0 °C at 760 mmHg |
| Density | 1.8±0.1 g/cm3 |
| Flash Point | 304.8±32.9 °C |
Frequently Asked Questions
What is the CAS number of 1,4-Phenylenediphosphonic acid?
The CAS number of 1,4-Phenylenediphosphonic acid is 880-68-2.
What are the molecular formula and molecular weight of 1,4-Phenylenediphosphonic acid?
1,4-Phenylenediphosphonic acid has molecular formula C6H8O6P2 and molecular weight 238.072 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,4-Phenylenediphosphonic acid (CAS 880-68-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1492424-6 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.