2-(2-Propyn-1-yloxy)ethanol
Also known as: Propynol ethoxylate, PME, 2-(Prop-2-yn-1-yloxy)ethanol, 2-(prop-2-ynyloxy)ethanol, 3-(2-Hydroxyethoxy)-1-propyne, Ethylene glycol monopropargyl ether, Propyne ethoxylate, 4-Oxa-1-hexyn-6-ol
2-(2-Propyn-1-yloxy)ethanol (CAS 3973-18-0) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C5H8O2 and a molecular weight of 100.116 g/mol. Key properties include a boiling point of 168.7±15.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 68.9±14.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3973-18-0
- Jingsj CID
- J-1392941-9
- Molecular Formula
- C5H8O2
- Molecular Weight
- 100.116 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 168.7±15.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 68.9±14.6 °C |
| Exact Mass | 100.052429 |
| PSA | 29.46000 |
| LogP | -0.25 |
| Vapor Pressure | 0.5±0.7 mmHg at 25°C |
| Refractive Index | 1.446 |
| Storage Conditions | -20°C |
Activity & Biological Data
| Target | PEGs |
|---|---|
| Additional Information | [1]. An S, et al. Small-molecule PROTACs: An emerging and promising approach for the development of targeted therapy drugs. EBioMedicine. 2018 Oct;36:553-562 |
Frequently Asked Questions
What is the CAS number of 2-(2-Propyn-1-yloxy)ethanol?
The CAS number of 2-(2-Propyn-1-yloxy)ethanol is 3973-18-0.
What are the molecular formula and molecular weight of 2-(2-Propyn-1-yloxy)ethanol?
2-(2-Propyn-1-yloxy)ethanol has molecular formula C5H8O2 and molecular weight 100.116 g/mol.
What are the upstream and downstream products of 2-(2-Propyn-1-yloxy)ethanol?
For 2-(2-Propyn-1-yloxy)ethanol, Upstream Products: Ethylene glycol, 3-Bromopropyne, 4-Pentyn-1-ol; Downstream Products: 2-Allyloxyethanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-(2-Propyn-1-yloxy)ethanol (CAS 3973-18-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1392941-9 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.