![Molecular structure of 1-[4-(2-Methylpropyl)phenyl]ethanone (CAS 38861-78-8)](/images/chem_structures_svg/099/38861-78-8.svg)
1-[4-(2-Methylpropyl)phenyl]ethanone
Also known as: 4'-(2-Methylpropyl)acetophenone, 4-Isobutylacetophenone, 1-(4-Isobutylphenyl)ethanone, 4'-Isobutylacetophenone, p-Isobutylacetophenone, p-iso-Butylacetophenone, Ibuprofen Impurity E, Ibuprofen Related Compound C, MFCD00027393
1-[4-(2-Methylpropyl)phenyl]ethanone (CAS 38861-78-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C12H16O and a molecular weight of 176.255 g/mol. Key properties include a melting point of 134-135ºC 16mm, a boiling point of 268.8±19.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 108.4±16.5 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H317 — May cause an allergic skin reaction and H411 — Toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 38861-78-8
- Jingsj CID
- J-10217-0
- Molecular Formula
- C12H16O
- Molecular Weight
- 176.255 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 134-135ºC 16mm |
|---|---|
| Boiling Point | 268.8±19.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 108.4±16.5 °C |
| Exact Mass | 176.120117 |
| PSA | 17.07000 |
| LogP | 3.54 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.500 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H317 — May cause an allergic skin reaction
- H411 — Toxic to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2914399090 |
|---|---|
| Summary | 2914399090. other aromatic ketones 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 1-[4-(2-Methylpropyl)phenyl]ethanone?
The CAS number of 1-[4-(2-Methylpropyl)phenyl]ethanone is 38861-78-8.
What are the molecular formula and molecular weight of 1-[4-(2-Methylpropyl)phenyl]ethanone?
1-[4-(2-Methylpropyl)phenyl]ethanone has molecular formula C12H16O and molecular weight 176.255 g/mol.
Is 1-[4-(2-Methylpropyl)phenyl]ethanone hazardous?
1-[4-(2-Methylpropyl)phenyl]ethanone has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H317 — May cause an allergic skin reaction; H411 — Toxic to aquatic life with long lasting effects.
What are the upstream and downstream products of 1-[4-(2-Methylpropyl)phenyl]ethanone?
For 1-[4-(2-Methylpropyl)phenyl]ethanone, Upstream Products: Isobutylbenzene, Acetyl chloride, Ibuprofen; Downstream Products: 4-Isobutylbenzaldehyde, 1-(4-Isobutylphenyl)ethanol, 4-Isobutylbenzoic acid.
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-[4-(2-Methylpropyl)phenyl]ethanone (CAS 38861-78-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10217-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.