4-Propylphenol
Also known as: p-Propylphenol, 4-n-Propylphenol, p-n-Propylphenol, Dihydrochavicol, Hydrochavicol, 3PO, Phenol, 4-propyl-, FEMA 3649, UNII H27VG833JY, MFCD00002395, EINECS 211-446-2
4-Propylphenol (CAS 645-56-7) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C9H12O and a molecular weight of 136.191 g/mol. Key properties include a melting point of 22°C, a boiling point of 232.6±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 106.1±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 645-56-7
- Jingsj CID
- J-29785-1
- Molecular Formula
- C9H12O
- Molecular Weight
- 136.191 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 22°C |
|---|---|
| Boiling Point | 232.6±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 106.1±0.0 °C |
| Exact Mass | 136.088821 |
| PSA | 20.23000 |
| LogP | 3.01 |
| Vapor Pressure | 0.0±0.4 mmHg at 25°C |
| Refractive Index | 1.529 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H332 — Harmful if inhaled
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2907199090 |
|---|---|
| Summary | 2907199090 other monophenols 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 4-Propylphenol?
The CAS number of 4-Propylphenol is 645-56-7.
What are the molecular formula and molecular weight of 4-Propylphenol?
4-Propylphenol has molecular formula C9H12O and molecular weight 136.191 g/mol.
Is 4-Propylphenol hazardous?
4-Propylphenol has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.
What are the upstream and downstream products of 4-Propylphenol?
For 4-Propylphenol, Upstream Products: 4'-Hydroxypropiophenone, trans-Anethole, Propionaldehyde; Downstream Products: Propylcyclohexane, 4-Propylcyclohexanone, trans-4-n-Propylcyclohexanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Propylphenol (CAS 645-56-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29785-1 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.