Methylphosphonothioic dichloride

Also known as: Methylphosphonothioic dichloride, Phosphonothioic dichloride, methyl-, Methanephosphonothioic dichloride, Methyldichlorophosphine sulfide, Dichloromethylphosphine sulfide, Methylthiophosphonic dichloride, Methylthionophosphonic dichloride, Dichloro(methyl)phosphine sulfide, Methylphosphonothioyl dichloride

Methylphosphonothioic dichloride (CAS 676-98-2) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula CH3Cl2PS and a molecular weight of 148.97900 g/mol. Key properties include a melting point of -25.5°C, a boiling point of 154-155ºC, a density of 1.422 g/mL at 25ºC(lit.) and a flash point of 73ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 676-98-2
Jingsj CID: J-1027413-2
Molecular Formula: CH₃Cl₂PS
Molecular Weight: 148.97900 g/mol
Category: Organohalogen Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	-25.5°C
Boiling Point	154-155ºC
Density	1.422 g/mL at 25ºC(lit.)
Flash Point	73ºC
Exact Mass	147.90700
PSA	41.90000
LogP	3.05390
Appearance	liquid
Refractive Index	n20/D 1.548(lit.)

Frequently Asked Questions

What is the CAS number of Methylphosphonothioic dichloride?

The CAS number of Methylphosphonothioic dichloride is 676-98-2.

What are the molecular formula and molecular weight of Methylphosphonothioic dichloride?

Methylphosphonothioic dichloride has molecular formula CH3Cl2PS and molecular weight 148.97900 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Methylphosphonothioic dichloride (CAS 676-98-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1027413-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.