4-Nitrophenylacetylene
Also known as: 1-Ethynyl-4-nitrobenzene, (4-Nitrophenyl)ethyne, (p-Nitrophenyl)acetylene, 4-Ethynyl-1-nitrobenzene, 4-Ethynylnitrobenzene, 4-Nitroethynylbenzene, Benzene, 1-ethynyl-4-nitro-, MFCD00024794, NSC 71089, p-Ethynylnitrobenzene, 1-Nitro-4-ethynylbenzene
4-Nitrophenylacetylene (CAS 937-31-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H5NO2 and a molecular weight of 147.131 g/mol. Key properties include a melting point of 148-150 °C(lit.), a boiling point of 246.6±23.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 112.5±15.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 937-31-5
- Jingsj CID
- J-32250-9
- Molecular Formula
- C8H5NO2
- Molecular Weight
- 147.131 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 148-150 °C(lit.) |
|---|---|
| Boiling Point | 246.6±23.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 112.5±15.4 °C |
| Exact Mass | 147.032028 |
| PSA | 45.82000 |
| LogP | 2.13 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.580 |
Customs & Trade Information
| HS Code | 2904209090 |
|---|---|
| Summary | 2904209090 derivatives containing only nitro or only nitroso groups。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Nitrophenylacetylene?
The CAS number of 4-Nitrophenylacetylene is 937-31-5.
What are the molecular formula and molecular weight of 4-Nitrophenylacetylene?
4-Nitrophenylacetylene has molecular formula C8H5NO2 and molecular weight 147.131 g/mol.
What are the upstream and downstream products of 4-Nitrophenylacetylene?
For 4-Nitrophenylacetylene, Upstream Products: Trimethyl((4-nitrophenyl)ethynyl)silane, 1-Iodo-4-nitrobenzene, Trimethylsilylacetylene; Downstream Products: 5-(4-Nitrophenyl)isoxazole-3-carboxylic acid, 4-Hydroxy-4'-nitrobiphenyl, 4-nitro-trans-beta-styrylboronic acid pinacol ester.
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-Nitrophenylacetylene (CAS 937-31-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32250-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.