Diethyl chlorothiophosphate
Also known as: O,O-Diethyl phosphorochloridothioate, Diethyl phosphorochloridothioate, DECTP, DEPCT, Ethyl PCT, Diethylchlorthiofosfat, O,O-Diethyl chlorothiophosphate, Phosphorochloridothioic acid O,O-diethyl ester
Diethyl chlorothiophosphate (CAS 2524-04-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H10ClO2PS and a molecular weight of 188.61300 g/mol. Key properties include a melting point of -75℃, a boiling point of 96 °C, a density of 1.2 g/mL at 25 °C(lit.) and a flash point of >110.0 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 2524-04-1
- Jingsj CID
- J-35943-3
- Molecular Formula
- C4H10ClO2PS
- Molecular Weight
- 188.61300 g/mol
- Category
- Organic Acids
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -75℃ |
|---|---|
| Boiling Point | 96 °C |
| Density | 1.2 g/mL at 25 °C(lit.) |
| Flash Point | >110.0 °C |
| Exact Mass | 187.98300 |
| PSA | 60.36000 |
| LogP | 3.17330 |
| Vapor Pressure | 0.152mmHg at 25°C |
| Refractive Index | n20/D 1.472(lit.) |
| Additional Property | hydrolyzes, immiscible |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H311 — Toxic in contact with skin
- H314 — Causes severe skin burns and eye damage
- H331 — Toxic if inhaled
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Diethyl chlorothiophosphate?
The CAS number of Diethyl chlorothiophosphate is 2524-04-1.
What are the molecular formula and molecular weight of Diethyl chlorothiophosphate?
Diethyl chlorothiophosphate has molecular formula C4H10ClO2PS and molecular weight 188.61300 g/mol.
Is Diethyl chlorothiophosphate hazardous?
Diethyl chlorothiophosphate has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin; H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of Diethyl chlorothiophosphate?
For Diethyl chlorothiophosphate, Upstream Products: Diethyl phosphorodithioate, Sodium ethoxide, Ethanol; Downstream Products: Coumaphos, Diazinon.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Diethyl chlorothiophosphate (CAS 2524-04-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35943-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.