1-(4-Nitrophenyl)urea
Also known as: 4-Nitrophenylurea, p-Nitrophenylurea, (4-Nitrophenyl)urea, N-(4-nitrophenyl)urea, para-nitrophenylurea, N-(p-nitrophenyl)urea, 1-(p-Nitrophenyl)urea
1-(4-Nitrophenyl)urea (CAS 556-10-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H7N3O3 and a molecular weight of 181.14900 g/mol. Key properties include a melting point of 217 °C, a boiling point of 341.2ºC at 760 mmHg, a density of 1.49g/cm3 and a flash point of 160.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 556-10-5
- Jingsj CID
- J-1506029-4
- Molecular Formula
- C7H7N3O3
- Molecular Weight
- 181.14900 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 217 °C |
|---|---|
| Boiling Point | 341.2ºC at 760 mmHg |
| Density | 1.49g/cm3 |
| Flash Point | 160.2ºC |
| Exact Mass | 181.04900 |
| PSA | 100.94000 |
| LogP | 2.38190 |
| Refractive Index | 1.68 |
Frequently Asked Questions
What is the CAS number of 1-(4-Nitrophenyl)urea?
The CAS number of 1-(4-Nitrophenyl)urea is 556-10-5.
What are the molecular formula and molecular weight of 1-(4-Nitrophenyl)urea?
1-(4-Nitrophenyl)urea has molecular formula C7H7N3O3 and molecular weight 181.14900 g/mol.
What are the upstream and downstream products of 1-(4-Nitrophenyl)urea?
For 1-(4-Nitrophenyl)urea, Upstream Products: 4-Nitrophenyl isocyanate, Potassium cyanate, Sodium cyanate; Downstream Products: 6-Nitro-1,3-benzoxazol-2-amine.
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-Nitrophenyl)urea (CAS 556-10-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1506029-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.