Dichlorophenylphosphine
Also known as: Phenylphosphonous dichloride, Phenylphosphonousdichlorid, Phosphonous dichloride, P-phenyl-, dichloro(phenyl)phosphane, Phenylphosphine dichloride, DCPP, BPD
Dichlorophenylphosphine (CAS 644-97-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H5Cl2P and a molecular weight of 178.984 g/mol. Key properties include a melting point of −51 °C(lit.), a boiling point of 224.0±9.0 °C at 760 mmHg, a density of 1.319 g/mL at 25 °C(lit.) and a flash point of 89.3±18.7 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H314 — Causes severe skin burns and eye damage and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 644-97-3
- Jingsj CID
- J-1041157-9
- Molecular Formula
- C6H5Cl2P
- Molecular Weight
- 178.984 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −51 °C(lit.) |
|---|---|
| Boiling Point | 224.0±9.0 °C at 760 mmHg |
| Density | 1.319 g/mL at 25 °C(lit.) |
| Flash Point | 89.3±18.7 °C |
| Exact Mass | 177.950592 |
| PSA | 13.59000 |
| LogP | 4.59 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | n20/D 1.597(lit.) |
| Additional Property | Reacts |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H314 — Causes severe skin burns and eye damage
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2903999090 |
|---|---|
| Summary | 2903999090 halogenated derivatives of aromatic hydrocarbons 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 Dichlorophenylphosphine?
The CAS number of Dichlorophenylphosphine is 644-97-3.
What are the molecular formula and molecular weight of Dichlorophenylphosphine?
Dichlorophenylphosphine has molecular formula C6H5Cl2P and molecular weight 178.984 g/mol.
Is Dichlorophenylphosphine hazardous?
Dichlorophenylphosphine has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H314 — Causes severe skin burns and eye damage; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Dichlorophenylphosphine?
For Dichlorophenylphosphine, Upstream Products: Phenylphosphine, Phenylphosphonic dichloride, Triphenylphosphine; Downstream Products: Bromodiphenylphosphine, bis(2-methoxyphenyl)phenylphosphine, Phenylthiophosphonic Dichloride.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Dichlorophenylphosphine (CAS 644-97-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1041157-9 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.