2,2-Diphenylpropionic acid
Also known as: Benzeneacetic acid, a-methyl-a-phenyl-, 2,2-Diphenylpropanoic acid, 2,2-Diphenylpropionic Acid, 2,2-diphenylpropanoate, ALPHA,ALPHA-DIPHENYLPROPIONIC ACID, EINECS 226-924-6, MFCD00004189
2,2-Diphenylpropionic acid (CAS 5558-66-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C15H14O2 and a molecular weight of 226.27000 g/mol. Key properties include a melting point of 172-175 °C(lit.), a boiling point of 300 °C(lit.) and a flash point of 149.5ºC. 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.
- 5558-66-7
- Jingsj CID
- J-49959-2
- Molecular Formula
- C15H14O2
- Molecular Weight
- 226.27000 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 172-175 °C(lit.) |
|---|---|
| Boiling Point | 300 °C(lit.) |
| Flash Point | 149.5ºC |
| Exact Mass | 226.09900 |
| PSA | 37.30000 |
| LogP | 3.07720 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2916399090 |
|---|---|
| Summary | 2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2,2-Diphenylpropionic acid?
The CAS number of 2,2-Diphenylpropionic acid is 5558-66-7.
What are the molecular formula and molecular weight of 2,2-Diphenylpropionic acid?
2,2-Diphenylpropionic acid has molecular formula C15H14O2 and molecular weight 226.27000 g/mol.
Is 2,2-Diphenylpropionic acid hazardous?
2,2-Diphenylpropionic acid 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 2,2-Diphenylpropionic acid?
For 2,2-Diphenylpropionic acid, Upstream Products: 2,2-Diphenylpropionitrile, Formic Acid, 1,1-Diphenylethanol; Downstream Products: 1,1-Diphenylethanol, 9-methylfluorene, Aprophen.
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-Diphenylpropionic acid (CAS 5558-66-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49959-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.