2-ethynylbenzaldehyde
Also known as: 2-Ethynylbenzaldehyde, 2-Formylphenylacetylene, Benzaldehyde, 2-ethynyl-, o-Ethynylbenzaldehyde, MFCD04039985, 2-ethynyl-benzaldehyde
2-ethynylbenzaldehyde (CAS 38846-64-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H6O and a molecular weight of 130.14300 g/mol. Key properties include a melting point of 64-67ºC, a boiling point of 230.3ºC at 760 mmHg, a density of 1.07g/cm3 and a flash point of 90.8ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 38846-64-9
- Jingsj CID
- J-35745-9
- Molecular Formula
- C9H6O
- Molecular Weight
- 130.14300 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 64-67ºC |
|---|---|
| Boiling Point | 230.3ºC at 760 mmHg |
| Density | 1.07g/cm3 |
| Flash Point | 90.8ºC |
| Exact Mass | 130.04200 |
| PSA | 17.07000 |
| LogP | 1.48040 |
| Refractive Index | 1.554 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2912299000 |
|---|---|
| Summary | 2912299000. other cyclic aldehydes without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2-ethynylbenzaldehyde?
The CAS number of 2-ethynylbenzaldehyde is 38846-64-9.
What are the molecular formula and molecular weight of 2-ethynylbenzaldehyde?
2-ethynylbenzaldehyde has molecular formula C9H6O and molecular weight 130.14300 g/mol.
Is 2-ethynylbenzaldehyde hazardous?
2-ethynylbenzaldehyde has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 2-ethynylbenzaldehyde?
For 2-ethynylbenzaldehyde, Upstream Products: 2-(trimethylsilyl)ethynylbenzaldehyde, 2-Bromobenzaldehyde, Trimethylsilylacetylene; Downstream Products: 2-Ethynylbenzyl alcohol, (4-Ethynylphenyl)methanol, 2-Iodonaphthalene.
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-ethynylbenzaldehyde (CAS 38846-64-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35745-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.