Trimethyl thiophosphate
Also known as: O,O,O-Trimethyl phosphorothioate, O,O,O-Trimethyl thiophosphate, Trimethylphosphorothionate, Trimethoxy(sulfanylidene)-λ5-phosphane, (CH3O)3PS, Phosphorothioic acid, O,O,O-trimethyl ester
Trimethyl thiophosphate (CAS 152-18-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H9O3PS and a molecular weight of 156.14100 g/mol. Key properties include a boiling point of 131.3ºC at 760mmHg, a density of 1.208g/cm3 and a flash point of 33.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 152-18-1
- Jingsj CID
- J-44123-6
- Molecular Formula
- C3H9O3PS
- Molecular Weight
- 156.14100 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 131.3ºC at 760mmHg |
|---|---|
| Density | 1.208g/cm3 |
| Flash Point | 33.2ºC |
| Exact Mass | 156.00100 |
| PSA | 69.59000 |
| LogP | 1.80070 |
| Vapor Pressure | 2.09mmHg at 25°C |
| Refractive Index | 1.445 |
Customs & Trade Information
| HS Code | 2920190090 |
|---|---|
| Summary | 2920190090 other thiophosphoric esters (phosphorothioates) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Trimethyl thiophosphate?
The CAS number of Trimethyl thiophosphate is 152-18-1.
What are the molecular formula and molecular weight of Trimethyl thiophosphate?
Trimethyl thiophosphate has molecular formula C3H9O3PS and molecular weight 156.14100 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Trimethyl thiophosphate (CAS 152-18-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44123-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.