1-(Benzyloxy)-3-ethynylbenzene
Also known as: 1-(BENZYLOXY)-3-ETHYNYLBENZENE, 1-Ethynyl-3-(phenylmethoxy)-benzene, Benzene, 1-ethynyl-3-(phenylmethoxy)-, 3'-Benzyloxyphenyl acetylene, 3-benzyloxyphenylacetylene
1-(Benzyloxy)-3-ethynylbenzene (CAS 128133-59-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C15H12O and a molecular weight of 208.255 g/mol. Key properties include a boiling point of 336.6±25.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 153.8±18.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 128133-59-5
- Jingsj CID
- J-16333-7
- Molecular Formula
- C15H12O
- Molecular Weight
- 208.255 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 336.6±25.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 153.8±18.9 °C |
| Exact Mass | 208.088821 |
| PSA | 9.23000 |
| LogP | 3.97 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.597 |
Customs & Trade Information
| HS Code | 2909309090 |
|---|---|
| Summary | 2909309090 other aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 1-(Benzyloxy)-3-ethynylbenzene?
The CAS number of 1-(Benzyloxy)-3-ethynylbenzene is 128133-59-5.
What are the molecular formula and molecular weight of 1-(Benzyloxy)-3-ethynylbenzene?
1-(Benzyloxy)-3-ethynylbenzene has molecular formula C15H12O and molecular weight 208.255 g/mol.
What are the upstream and downstream products of 1-(Benzyloxy)-3-ethynylbenzene?
For 1-(Benzyloxy)-3-ethynylbenzene, Upstream Products: 3-Ethynylphenol, Benzyl bromide; Downstream Products: 3-Vinylphenol, Benzene, 1-ethyl-3-(phenylmethoxy)- (9CI).
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-(Benzyloxy)-3-ethynylbenzene (CAS 128133-59-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-16333-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.