1-(4-Hydroxyphenyl)piperazine
Also known as: 4-(1-Piperazino)phenol, 4-(piperazin-1-yl)phenol, N-(4-Hydroxyphenyl)piperazine, 4-Piperazin-1-ylphenol, 4-Piperazinylphenol, 4-(1-Piperazinyl)phenol
1-(4-Hydroxyphenyl)piperazine (CAS 56621-48-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H14N2O and a molecular weight of 178.231 g/mol. Key properties include a melting point of 220 °C, a boiling point of 371.3±27.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 178.3±23.7 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 56621-48-8
- Jingsj CID
- J-49537-4
- Molecular Formula
- C10H14N2O
- Molecular Weight
- 178.231 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 220 °C |
|---|---|
| Boiling Point | 371.3±27.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 178.3±23.7 °C |
| Exact Mass | 178.110611 |
| PSA | 35.50000 |
| LogP | 0.37 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.576 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2933599090 |
|---|---|
| Summary | 2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 1-(4-Hydroxyphenyl)piperazine?
The CAS number of 1-(4-Hydroxyphenyl)piperazine is 56621-48-8.
What are the molecular formula and molecular weight of 1-(4-Hydroxyphenyl)piperazine?
1-(4-Hydroxyphenyl)piperazine has molecular formula C10H14N2O and molecular weight 178.231 g/mol.
Is 1-(4-Hydroxyphenyl)piperazine hazardous?
1-(4-Hydroxyphenyl)piperazine has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 1-(4-Hydroxyphenyl)piperazine?
For 1-(4-Hydroxyphenyl)piperazine, Upstream Products: 1-(4-Methoxyphenyl)piperazine, Piperazine, 4-Bromophenol; Downstream Products: 1-isopropyl-4-(4-hydroxyphenyl)piperazine, 1-Acetyl-4-(4-hydroxyphenyl)piperazine, Ketoconazole.
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-Hydroxyphenyl)piperazine (CAS 56621-48-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49537-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.