α-Naphtholbenzein
Also known as: p-Naphtholbenzein, 1-Naphtholbenzein, 4,4'-(α-Hydroxybenzylidene)di-1-naphthol, 4-[(4-Hydroxy-1-naphthalenyl)phenylmethylene]-1(4H)-naphthalenone, (4E)-4-[(4-Hydroxy-1-naphthyl)(phenyl)methylene]-1(4H)-naphthalenone, (E)-4-((4-hydroxynaphthalen-1-yl)(phenyl)methylene)naphthalen-1(4H)-one, 4-(α-(4-Hydroxy-1-naphthyl)benzylidene)naphthalen-1(4H)-one, alpha-Naphtholbenzein
α-Naphtholbenzein (CAS 145-50-6) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C27H18O2 and a molecular weight of 374.431 g/mol. Key properties include a melting point of 230-235 °C(lit.), a boiling point of 578.6±50.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 242.3±22.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 145-50-6
- Jingsj CID
- J-5611-3
- Molecular Formula
- C27H18O2
- Molecular Weight
- 374.431 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 230-235 °C(lit.) |
|---|---|
| Boiling Point | 578.6±50.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 242.3±22.7 °C |
| Exact Mass | 374.130676 |
| PSA | 37.30000 |
| LogP | 7.11 |
| Vapor Pressure | 0.0±1.7 mmHg at 25°C |
| Refractive Index | 1.724 |
| Additional Property | insoluble |
Activity & Biological Data
| Additional Information | [1]. Maskula S, et al. Titration of strong and weak acids by sequential injection analysis technique. Talanta. 2000 May 31;52(1):91-9. |
|---|
Customs & Trade Information
| HS Code | 2914501900 |
|---|---|
| Summary | 2914501900 other ketone-phenols。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 α-Naphtholbenzein?
The CAS number of α-Naphtholbenzein is 145-50-6.
What are the molecular formula and molecular weight of α-Naphtholbenzein?
α-Naphtholbenzein has molecular formula C27H18O2 and molecular weight 374.431 g/mol.
What are the upstream and downstream products of α-Naphtholbenzein?
For α-Naphtholbenzein, Upstream Products: 1-Naphthol, Benzotrichloride.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "α-Naphtholbenzein (CAS 145-50-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5611-3 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.