4-HYDROXYPHENYL PHOSPHONIC ACID
Also known as: (4-hydroxyphenyl)phosphonic acid, (p-Hydroxyphenyl)phosphonic acid, 4-Hydroxybenzenephosphonic acid, Phosphonic acid, (4-hydroxyphenyl)-, p-dihydroxyphosphorylphenol
4-HYDROXYPHENYL PHOSPHONIC ACID (CAS 33795-18-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H7O4P and a molecular weight of 174.09100 g/mol. Key properties include a melting point of 169 °C, a boiling point of 439.9ºC at 760mmHg, a density of 1.6g/cm3 and a flash point of 219.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 33795-18-5
- Jingsj CID
- J-1492421-1
- Molecular Formula
- C6H7O4P
- Molecular Weight
- 174.09100 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 169 °C |
|---|---|
| Boiling Point | 439.9ºC at 760mmHg |
| Density | 1.6g/cm3 |
| Flash Point | 219.8ºC |
| Exact Mass | 174.00800 |
| PSA | 87.57000 |
| LogP | 0.19520 |
| Refractive Index | 1.62 |
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-HYDROXYPHENYL PHOSPHONIC ACID?
The CAS number of 4-HYDROXYPHENYL PHOSPHONIC ACID is 33795-18-5.
What are the molecular formula and molecular weight of 4-HYDROXYPHENYL PHOSPHONIC ACID?
4-HYDROXYPHENYL PHOSPHONIC ACID has molecular formula C6H7O4P and molecular weight 174.09100 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. "4-HYDROXYPHENYL PHOSPHONIC ACID (CAS 33795-18-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1492421-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.