4-(Phenylethynyl)benzoic acid
Also known as: 4-(2-phenylethynyl)benzoic acid, 4-PHENYLETHYNYL-BENZOIC ACID, Benzoic acid, 4-(2-phenylethynyl)-, p-(Phenylethynyl)benzoic acid, Tolan-4-carboxylic acid, RARECHEM AL BO 1652, AKOS B025059, AKOS BAR-2464, ART-CHEM-BB B025059, Albb-005706
4-(Phenylethynyl)benzoic acid (CAS 25739-23-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C15H10O2 and a molecular weight of 222.239 g/mol. Key properties include a boiling point of 407.3±28.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 185.7±18.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 25739-23-5
- Jingsj CID
- J-1448079-6
- Molecular Formula
- C15H10O2
- Molecular Weight
- 222.239 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 407.3±28.0 °C at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 185.7±18.7 °C |
| Exact Mass | 222.068085 |
| PSA | 37.30000 |
| LogP | 4.46 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.655 |
| Storage Conditions | 2-8℃ |
Customs & Trade Information
| HS Code | 2916399090 |
|---|---|
| Summary | 2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-(Phenylethynyl)benzoic acid?
The CAS number of 4-(Phenylethynyl)benzoic acid is 25739-23-5.
What are the molecular formula and molecular weight of 4-(Phenylethynyl)benzoic acid?
4-(Phenylethynyl)benzoic acid has molecular formula C15H10O2 and molecular weight 222.239 g/mol.
What are the upstream and downstream products of 4-(Phenylethynyl)benzoic acid?
For 4-(Phenylethynyl)benzoic acid, Upstream Products: Carbon dioxide, 4-Bromobenzoic acid, Phenylacetylene.
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-(Phenylethynyl)benzoic acid (CAS 25739-23-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1448079-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.