Sesquimustard

Also known as: 1,2-bis[(2-chloroethyl)thio]ethane, 1,2-bis(2-chloroethylsulfanyl)ethane, 1,2-bis(2-chloroethylthio)ethane, Ethylenebis(2-chloroethyl sulfide), 1,1'-(Ethylenebisthio)bis(2-chloroethane), 1,8-Dichloro-3,6-dithiaoctane, 3,6-dithiaoctane-1,8-dichloride, Agent Q, HSM 1, SM 1, Sesquimustard Q, Sesquisulfur Mustard, TL 86

Sesquimustard (CAS 3563-36-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H12Cl2S2 and a molecular weight of 219.19500 g/mol. Key properties include a boiling point of 328.7ºC at 760mmHg, a density of 1.229g/cm3 and a flash point of 144.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3563-36-8
Jingsj CID: J-1500655-2
Molecular Formula: C₆H₁₂Cl₂S₂
Molecular Weight: 219.19500 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	328.7ºC at 760mmHg
Density	1.229g/cm3
Flash Point	144.9ºC
Exact Mass	217.97600
PSA	50.60000
LogP	2.93040
Refractive Index	1.535

Customs & Trade Information

HS Code	2930909090
Summary	2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Sesquimustard?

The CAS number of Sesquimustard is 3563-36-8.

What are the molecular formula and molecular weight of Sesquimustard?

Sesquimustard has molecular formula C6H12Cl2S2 and molecular weight 219.19500 g/mol.

What are the upstream and downstream products of Sesquimustard?

For Sesquimustard, Upstream Products: 3,6-Dithia-1,8-octanediol, 1,2-Ethanedithiol, 1-Bromo-2-chloroethane; Downstream Products: 1,4-Dithiane, 1,4,7,10,13,16-hexathiacyclooctadecane, 1,4,7,10-Tetrathiacyclododecane.

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. "Sesquimustard (CAS 3563-36-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1500655-2 (accessed 2026-11-06).

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